Eastern Mojave Vegetation
Images -- Species - Rosaceae

By Tom Schweich


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Images are organized by the topics listed at left. Click on a topic name to see images with that topic.

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Agrimonia striata

Coll. No. 2622, Agrimonia striata.

Photographed 19 January 2022.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Agrimonia striata Michx.  Roadside Agrimony.

Spring Brook, Boulder County, Colorado. Northern part of Lippincott Ranch in Boulder County, in the bed of Spring Brook, 2.37 km. north of the main gate to Lippincott Ranch, 24.0 km. north northwest of the GNIS location of Golden. 39.9152°N, 105.2786°W. WGS 1984 Elev. 2012 m. Also collected here: Myosotis scorpioides, an introduced species. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich, with John Vickery 2622. 20-Jul-2021

Article records that use this photograph:

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Amelanchier alnifolia

Nuttall (1818) description of Aronia alnifolia.

Article records that use this photograph:

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Coll. No. 2253, Amelanchier alnifolia

Photographed 30 April 2020.

Article records that use this photograph:

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Fruit of Coll. No. 2818, Amelanchier alnifolia.

Scanned 7 September 2022.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.  Saskatoon Serviceberry.

Tin Cup Ridge, Jefferson County, Colorado. Top of steep slope, east side of ridge, hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.99 km. south southeast of the GNIS location of Golden. 39.7094°N, 105.2029°W. WGS 1984 Elev. 1948 m. Small shrubs to 1 m., forming fruit. With Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2818. 28-Jun-2022

Article records that use this photograph:

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Nuttall (1834) use of the name Amelanchier alnifolia

Article records that use this photograph:

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Roemer (1847) description of A. alnifolia

Article records that use this photograph:

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Amelanchier alnifolia in fruit.

Photographed 7 July 2021 in Apex Park, Jefferson County, Colorado.

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Habitat of Coll. No. 1800, Amelanchier alnifolia

Photographed 7 May 2018.

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Coll. No. 1801, Amelanchier alnifolia

Scanned 9 July 2018.

Coll. No. 1800-1801, 7 May 2018, characters oberved: Shrub, to 1 m.; Stems, branches unarmed; Leaves, simple, petiole, 8 mm., blade, 22-32 mm. × 19-32 mm. wide, veins, pinnate, surface, sparsely hairy above, sparsely to moderately hairy below, margin, serrate; Flowers, borne singly, pedicels, 10 mm., petals 9 mm. × 4.5 mm. wide, color cream; Ovary, inferior, tip hairy; Styles, #(4)5;

Article records that use this photograph:

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Coll. No. 1801, Amelanchier alnifolia

Scanned 9 July 2018.

Coll. No. 1800-1801, 7 May 2018, characters oberved: Shrub, to 1 m.; Stems, branches unarmed; Leaves, simple, petiole, 8 mm., blade, 22-32 mm. × 19-32 mm. wide, veins, pinnate, surface, sparsely hairy above, sparsely to moderately hairy below, margin, serrate; Flowers, borne singly, pedicels, 10 mm., petals 9 mm. × 4.5 mm. wide, color cream; Ovary, inferior, tip hairy; Styles, #(4)5;

Article records that use this photograph:

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Amelanchier utahensis

Utah Service Berry as found on the knob named “Sand.”

Photograph taken 22 June 2010.

Article records that use this photograph:

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Amelanchier utahensis

North slope of Wild Horse Mesa.

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Amelanchier utahensis

North slope of Wild Horse Mesa.

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Habitat of Utah Service Berry near the knob named “Sand.”

Article records that use this photograph:

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Coll. No. 925, Amelanchier utahensis

Scanned 25 Feb 2014.

Coll. No. 925, 25 May 2013, characters observed: Woody shrub, 1-2 m.; Stem, glabrous, thorns 0; Leaves, ±evenly distributed on branches, simple, petiole 4 mm. + blade 18 mm. × 10-12 mm. wide, not leathery, margin entire to distally toothed, abaxially glabrous in flower, few hairs on petioles, adaxial leaf surface, and proximal margins, deciduous unknown; Petals, #5, obovate, 10 mm × 5 mm. wide; Ovary inferior, top glabrous; Styles 3; Fruit, unknown (plant in flower).

Although thought to be different when collected, this is the same taxon as Coll. No. 926, including the somewhat unusual combination of characters typical of A. utahensis, i.e., number of styles and narrow shape of leaf, with absence of hairs on ovary and abaxial leaf suggesting A. alnifolia var. pumila.

Article records that use this photograph:

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Coll. No. 925, Amelanchier utahensis

Scanned 28 Feb 2014.

Things to see here: styles 3, ovary glabrous.

Coll. No. 925, 25 May 2013, characters observed: Woody shrub, 1-2 m.; Stem, glabrous, thorns 0; Leaves, ±evenly distributed on branches, simple, petiole 4 mm. + blade 18 mm. × 10-12 mm. wide, not leathery, margin entire to distally toothed, abaxially glabrous in flower, few hairs on petioles, adaxial leaf surface, and proximal margins, deciduous unknown; Petals, #5, obovate, 10 mm × 5 mm. wide; Ovary inferior, top glabrous; Styles 3; Fruit, unknown (plant in flower).

Although thought to be different when collected, this is the same taxon as Coll. No. 926, including the somewhat unusual combination of characters typical of A. utahensis, i.e., number of styles and narrow shape of leaf, with absence of hairs on ovary and abaxial leaf suggesting A. alnifolia var. pumila.

Article records that use this photograph:

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Argentina anserina

Coll. No. 3094, Rosaceae Argentina anserina.

Photographed 4 January 2024.

Plants of Colorado
Rosaceae

Argentina anserina (L.) Rydb.  Silver Weed Cinquefoil.

Salt Creek, Park County, Colorado. Along the fence line, about 636 m. northeast of the crossing of Salt Creek by Forest Road 435 “Salt Creek Road,” 3.0 mi. by road west of US Highway 285, 111 km. southwest of Golden. 38.9605°N, 106.0014°W. WGS 1984 Elev. 2821 m. Dry bank of small spring-fed creek, with Antennaria sp., and Artemisia frigida.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3094. 17-Jul-2023

Article records that use this photograph:

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Cercocarpus ledifolius intermontanus

Mountain Mahogany on hills near Sagehen Meadow

Photograph taken 16 July 2010

Article records that use this photograph:

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Overview of Collection No. 667.

Scanned 17 May 2011. Grid is 10x10 to the inch.

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Detail of Collection No. 667.

Scanned 17 May 2011. Grid is 10x10 to the inch.

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Cercocarpus montanus

Coll. No. 2816, Cercocarpus montanus.

Photographed 5 September 2022.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Cercocarpus montanus Raf.  Alder-Leaf Mountain Mahogany.

Tin Cup Ridge, Jefferson County, Colorado. On the east side, mid-slope, of the hogback locally called Tin Cup Ridge, the northward extension of Dinosaur Ridge into Golden, 6.52 km. south southeast of the GNIS location of Golden. 39.7125°N, 105.2041°W. WGS 1984 Elev. 1904 m. Common shrub, to 2 m., on open, rocky slopes. Past-flowering, with developing fruit. Also here: Rhus trilobata, Artemisia ludoviciana, Ericameria nauseosa var. graveolens, and Heterotheca villosa.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2816. 28-Jun-2022

Article records that use this photograph:

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Coll. No. 2270.1, Cercocarpus montanus in bloom.

Scanned 26 October 2020.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Rosaceae

Cercocarpus montanus Raf.  Alder-Leaf Mountain Mahogany.

Dakota Ridge, Jefferson County, Colorado. Southern end of the hogback in northernmost Golden, 4.17 km. north northwest of the GNIS location of Golden. 39.7815°N, 105.2373°W. WGS 1984 Elev. 1882 m. In bloom, no fruit yet. Foothills shrubland, primarily C. montanus, with Ribes cereum, Rhus trilobata, and Amelanchier alnifolia, and forbs: Physaria montana, Penstemon virens, and Viola nuttallii,

Collected by permit: City of Golden, 2020, issued: Apr 9, 2020, to: Tom Schweich.

Tom Schweich 2270.1 9-May-2020

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Coll. No. 2184, Cercocarpus montanus in fruit.

Scanned 30 January 2020.

Plants of Colorado
Rosaceae

Cercocarpus montanus Raf.  Alder-Leaf Mountain Mahogany.

Little Scraggy Peak, Jefferson County, Colorado. Buffalo Creek Recreation Area, northeast slopes of Little Scraggy Peak, fairly close to Little Scraggy trailhead, about 4 mi. south of town of Buffalo Creek by Cty Rd 126, 60.4 km. south of the GNIS location of Golden. 39.3384°N, 105.2613°W. WGS 1984 Elev. 2426 m. Also collected here: Ceanothus fendleri and Potentilla fissa. Among rock outcrops in an area generally disturbed by minerals prospecting, fuels reduction, and mountain biking recreation.

Collected by permit: Pike-Isabel National Forest, 2019, issued: Mar 8, 2019, to: Tom Schweich.

Tom Schweich 2184. 23-Jul-2019

Article records that use this photograph:

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Mountain Mahogany (Cercocarpus montanus) on South Table Mountain.

Photographed 15 October 2014.

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Coll. No. 741, Cercocarpus montanus

Scanned 7 Jan 2012.

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Chamaebatiaria millefolium

Chamaebatiaria millefolium growing on the rim of the inner crater.

Photographed 19 June 2012.

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Coll. No. 758, Chamaebatiaria millefolium

Scanned 17 Jan 2012

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Coleogyne ramosissima

Collection No. 442 from the Mesquite Mountains.

Scanned 22-Jan-06.

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Blackbrush (Coleogyne ramosissima) in the Mesquite Mountains, California

Photograph taken 20 April 2005, in the Mesquite Mountains, about 300 meters northeast of Winters Pass. This is my collection number 442.

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Collection No. 442 from the Mesquite Mountains.

Scanned 22-Jan-06.

Article records that use this photograph:

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Blackbrush (Coleogyne ramosissima) flower in profile view.

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Blackbrush (Coleogyne ramosissima) flower in plan view.

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Blackbrush on the Volcanic Tableland

Photograph taken April 27, 2009.

Article records that use this photograph:

  • Casa Diablo Mine Road, Mono County, and Casa Diablo Road, Inyo County, California: on the road.
  • A Bibliography on Blackbrush (Coleogyne ramosissima): on Volcanic Tableland.

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Blackbrush (Coleogyne ramosissima) in bloom along Excelsior Mine Road.

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Blackbrush (Coleogyne ramosissima) in bloom at Monument Valley.

Photographed 20 April 2017.

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Cotoneaster lucidus

Where I found Cotoneaster lucidus … thanks to Cindy.

Photographed 3 June 2020.

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Coll. No. 2315, Cotoneaster lucidus

Photographed 26 November 2020.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Cotoneaster lucidus Schltdl.  Hairy Stem Cotoneaster.

Welch Ditch, Jefferson County, Colorado. Along the former Welch Ditch, south side of Clear Creek, in a small gulch south of and above the ditch, just inside the mouth of Clear Creek Canyon, 2.37 km. west southwest of the GNIS location of Golden. 39.752°N, 105.2419°W. WGS 1984 Elev. 1779 m. Plants first recognized in the field by Cindy Trujillo.

Collected by permit: Jefferson County Open Space, 2020, issued: Apr 13, 2020, to: Tom Schweich.

Tom Schweich 2315. 3-Jun-2020

Article records that use this photograph:

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Crataegus erythropoda

Coll. No. 2930, Crataegus erythropoda.

Photographed 29 October 2023.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Crataegus erythropoda Ashe.  Cerro Hawthorn.

Magpie Gulch, Jefferson County, Colorado. In Mt. Galbraith Park, beside the creek in Magpie Gulch, about 1100 m. west of the gate to the parcel, 2.99 km. west northwest of the GNIS location of Golden. 39.7585°N, 105.2477°W. WGS 1984 Elev. 1930 m.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2930. 31-May-2023

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Crataegus succulenta

Coll. No. 2061, Crataegus succulenta

Photographed 2 October 2019.

Article records that use this photograph:

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E. L. Greene collection of Crataegus succulenta

©New York Botanic Garden Steere Herbarium (NY). URL: http://swbiodiversity.org/seinet/collections/individual/index.php?occid=2810211&clid=0. Accessed 14 April 2020. Usage Rights: CC BY-NC (Attribution-Non-Commercial).

Article records that use this photograph:

  • Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Unknown, 1872.

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General appearance of Coll. No. 1455, Crataegus succulenta

Photographed 27 June 2016.

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Fruit of Coll. No. 1462, Crataegus succulenta

Photographed 27 June 2016.

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Dasiophora fruticosa

Coll. No. 2898, Dasiophora fruticosa.

Photographed 18 December 2022.

Plants of Colorado
Rosaceae

Dasiophora fruticosa (L.) Rydb.  Shrubby Cinquefoil, Golden Hardtack.

Unnamed Gulch, Lake County, Colorado. Along Forest Road 189, about 1 km. west of County Road 18 “East Tennessee Road,” 7.37 km. north northwest of the GNIS location of Leadville. 39.2987°N, 106.3162°W. WGS 1984 Elev. 3108 m. Openings in aspen forest, surrounded by patches of big sagebrush and willows.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Tom Schweich 2898. 21-Jul-2022

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Blue Copper on Coll. No. 2898, Dasiophora fruticosa.

Photographed 21 Jul 2022.

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Dasiphora fruticosa

Coll. No. 2592, Dasiphora fruticosa

Photographed 13 December 2021.

Plants of Colorado
Rosaceae

Dasiphora fruticosa (L.) Rydb.  Shrubby Cinquefoil, Golden Hardtack.

North Fork West Tennessee Creek, Lake County, Colorado. About 300 m. east of Lily Lake, along Pike-San Isabel Forest Road 131, 2.6 road miles west of US Highway 24, and 10.9 road miles north northwest of Leadville, 140 km. southwest of the GNIS location of Golden. 39.3522°N, 106.3659°W. WGS 1984 Elev. 3228 m. Dry rocky opening in lodgepole pine forest. Also collected nearby: Eriogonum umbellatum var. majus, Androsace septentrionalis, Collomia linearis, and Solidago multiradiata.

Collected by permit: Pike - San Isabel National Forest, 2021, issued: Mar 29, 2021, to: Tom Schweich.

Tom Schweich 2592. 13-Jul-2021

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Drymocallis glandulosa reflexa

Coll. No. 707, Drymocallis glandulosa var. reflexa

Scanned 15 Nov 2011.

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Fallugia paradoxa

Apache Plume (Fallugia paradoxa)

is found occasionally along the washes in the higher elevations of Mojave National Preserve.

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Collection No. 146, Fallugia paradoxa

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Collection No. 146, Fallugia paradoxa

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Collection No. 146, Fallugia paradoxa

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Fragaria vesca

Coll. No. 3056, Fragaria vesca.

Photographed 26 December 2023.

Plants of Colorado
Rosaceae

Fragaria vesca L.  Woodland Strawberry.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.20 km. southwest of Little Scraggy Peak, 50.1 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3068°N, 105.2847°W. WGS 1984 Elev. 2570 m. Forested, shaded, wet bank of creek; also collected nearby: Osmorhiza depauperata, Pyrola chlorantha, Rubus pubescens, Pedicularis canadensis, and Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3056. 10-Jul-2023

Article records that use this photograph:

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Fragaria virginiana

Coll. No. 1473, Fragaria virginiana

Scanned 29 December 2016.

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Geum macrophyllum

Geum macrophyllum growing beside a spring.

Photographed 16 July 2019.

Determination tentative.

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Overview of Collection No. 560

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Detail of Collection No. 560

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Detail of Coll. No. 685, Geum macrophyllum

Scanned 30 Oct 2011.

Things to see in this scan: (1) Are the little appendages, circled in red, hypanthium bractlets? (2) Are there bristles at the base of the styles in maturing fruit?

30 Oct 2011: Characters observed while keying: Perennial herb, drying green; Flowers 3-10 (observed: 8, 10), erect; Epicalyx should be present per Taylor (2010) but unable to see; Sepals 4, green; Hypanthium shape ? (unable to observe in dried specimens), bractlets unclear (but see small appendages circled in red on detail photo); Petals present, yellow; Styles persistent, 2-9 mm (obs: 4-5 mm), tapered, hooked, bristles at base (see detail photo, conflicts with species description), not plumose.

Article records that use this photograph:

  • Inyo National Forest Road 01S04A, Mono County, California: 10300.
  • Field Notes: 23 Jul 2010.

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Geum macrophyllum perincisum

Coll. No. 2893, Geum macrophyllum var. perincisum

Photographed 15 December 2022.

Plants of Colorado
Rosaceae

Geum macrophyllum Willd. var. perincisum (Rydb.) Raup.  Large-leaf Avens.

Brumley, Lake County, Colorado. Edge of slough beside the North Fork of Lake Creek, near the access road to the Sno-Tel station, about 11 road miles generally west on Colorado Highway 82 from the town of Twin Lakes, 175 km. southwest of Golden. 39.0895°N, 106.5422°W. WGS 1984 Elev. 3236 m. Common on edge of slough (former channel of the creek). Brumley was a stage stop on the route across Independence Pass.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Tom Schweich 2893. 20-Jul-2022

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Coll. No. 438.1, Geum macrophyllum var. perincisum

Scanned 12 November 2012.

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Geum triflorum

Coll. No. 1470, Geum triflorum

Scanned 30 December 2016.

Coll. No 1470, 29 June 2016, characters observed: Perennial herb, to 20 cm., pilose; Leaves, basal, petiole 20 mm. + blade 70 mm. × 25 mm. wide, pinnately compound, leaflets, 15 mm. × 9 mm. wide, deeply lobed, terminal leaflet 3-lobed at tip; flowering stem, opposite; Sepals, #5, 7 mm. × 2.5 mm. wide; Flowers, nodding; Petals, 6 mm. × 3.7 mm. wide, white; Stamens, many; Styles, many, (in fruit) unknown; Fruit, unknown.

Article records that use this photograph:

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Holodiscus discolor microphyllus

Stems and leaves of Collection No. 668, Holodiscus discolor var. microphyllus

Scanned 17 May 2011. Grid is 10x10 to the inch.

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Flowers of Collection No. 668, Holodiscus discolor var. microphyllus

Scanned 17 May 2011. Grid is 10x10 to the inch.

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Overview of Collection No. 668, Holodiscus discolor var. microphyllus

Scanned 17 May 2011. Grid is 10x10 to the inch.

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Ocean Spray (Holodiscus discolor var. microphyllus) on hill above Sagehen Meadow

Photograph taken 16 July 2010

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Leaf cluster of Coll. No. 1189, Holodiscus discolor var. microphyllus

Scanned 11 November 2015.

Coll. No. 1189, 26 June 2015, characters observed: Perennial shrub, to 2 m.; Leaves, alternate and alternate clusters, 12 mm. × 11 mm. wide, base wedge-shaped, widest at or below middle, toothed distally, teeth entire, veins pinnate, glands 0; Inflorescence, raceme; Pedicels, 4.5 mm., bractlets, #2; Petals, white; Ovary, superior; Pistils, #5, hairs dense bristle-like.

Article records that use this photograph:

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Coll. No. 1189, Holodiscus discolor var. microphyllus

Scanned 11 November 2015.

Coll. No. 1189, 26 June 2015, characters observed: Perennial shrub, to 2 m.; Leaves, alternate and alternate clusters, 12 mm. × 11 mm. wide, base wedge-shaped, widest at or below middle, toothed distally, teeth entire, veins pinnate, glands 0; Inflorescence, raceme; Pedicels, 4.5 mm., bractlets, #2; Petals, white; Ovary, superior; Pistils, #5, hairs dense bristle-like.

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Horkelia fusca parviflora

Horkelia fusca ssp. parviflora, Coll #689

Photograph taken 25 July 2010 in the Bodie Hills, southwest of Murphy Spring.

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        images/IMGP0654sm.jpg

Coll. No. 689, Horkelia fusca var. parviflora

Scanned 8 Nov 2011.

Coll. No. 689, 7 Nov 2011, characters observed while keying: Perennial herb, to 3 dm; Stem glandular; Leaf pinnately compound; Leaflets 9; 5-11 mm, divided ±40% to base; Epicalyx supposedly present but I can't see it with dry specimens; Sepals 5, with subtending bractlets (?); Petals 5, white, 2 mm; Filaments flattened, 0.8 mm widebroader at base than above; Stamens 2 x 5 = 10; Anthers <= 0.5 mm; Styles 1 mm, jointed to fruit, deciduous; Fruits 1 mm; Achenes not fleshy.

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        images/TAS006890Oview.jpg

Horkeliella congdonis

Horkeliella congdonis in Sagehen Meadow

Photograph taken 26 July 2010 in Sagehen Meadow.

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        images/IMGP0684sm.jpg

Coll. No, 694, Horkeliella congdonis

Scanned 10 Nov 2011.

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        images/TAS006940Oview.jpg

Petrophyton caespitosum

Petrophyton caespitosum in Caruthers Canyon.

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        images/3182-64.jpg

Physocarpus monogynus

Coll. No. 3247, Physocarpus monogynus.

Photographed 8 June 2024.

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        images/20240608_111457sm.jpg

Habitat of Physocarpus monogynus on North Table Mountain.

Photographed 8 June 2018.

I could smell the Physocarpus when I walked by it, but did not see it. Later, from the quarry road, I was able to see it in the shrubs below.

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        images/IMG50257sm.jpg

Coll. No. 1658, Physocarpus monogynus

Photographed 11 December 2017.

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        images/IMGQ4486sm.jpg

Coll. No. 1397, Physocarpus monogynus

Scanned 1 December 2016.

Coll. No. 1397, 8 June 2016, characters observed: Shrub, height unknown (growing in ravine); Leaves, alternate, simple, hairs stellate, petiole, 10 mm., blade, 30 mm. × 33 mm. wide, ovate, palmate-veined, doubly crenate; Inflorescence, umbellate corymb, ±20-flowered; Pedicels, 8-12 mm.; Flowers, limb, 12 mm., petals, 4.5 mm., color cream; Styles, 2.

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        images/TAS013970Oview.jpg

Fruit of Coll. No. 1739, Physocarpus monogynus

Scanned 7 January 2018.

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        images/TAS017390Fr.jpg

Coll. No. 1739, Physocarpus monogynus

Photographed 7 January 2018.

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        images/IMGQ4532sm.jpg

Potentilla

Coll. No. 3283, Potentilla sp.

Photographed 28 June 2024.

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        images/20240628_090150esm.jpg

Accidental Coll. No. 1473.1, Potentilla sp.

Scanned 29 December 2016.

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        images/TAS014731.jpg

Potentilla anserina

Potentilla anserina on the dam at Pine Valley Ranch Park.

Photographed 6 June 2021.

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        images/20210606_135042sm.jpg

Coll. No. 3094, Potentilla anserina.

Photographed 17 July 2023.

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        images/20230717_115229sm.jpg

Potentilla anserina anserina

Detail of Collection No. 562, Potentilla anserina var. anserina

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        images/TAS005620det.jpg

Coll. No. 562, Potentilla anserina ssp. anserina

Photograph taken August 14, 2008.

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        images/IMG01339sm.jpg

Overview of Collection No. 562, Potentilla anserina var. anserina

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        images/TAS005620oview.jpg

June Lake and Silver Weed Cinquefoil

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        images/MLF_V1_Slide11.jpg

Potentilla biennis

Potentilla biennis, Coll #688, Bodie Hills

Photograph taken 25 July 2010 in the Bodie Hills, southwest of Murphy Spring.

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        images/IMGP0650sm.jpg

Collection No. 524, Potentilla biennis

Scanned 20 March 2011. Background grid is 10 x 10 to the inch.

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        images/TAS005240oview.jpg

Collection No. 524, Potentilla biennis

Photograph taken August 2, 2007 beside Rush Creek.

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        images/IMGP2721sm.jpg

Coll. No. 688, Potentilla biennis

Scanned 7 Nov 2011.

The little things that look like beans are individual carpels, each containing a seed. A style is circled in red.

Coll. No. 688, 7 Nov 2011, characters observed while keying: Perennial herb (not shrub), to 4 dm, without stolons; Stem some hairs weakly glandular; Leaflets 3; Petals yellow, 1.5 mm; Carpels numerous on a convex receptacle; Styles attached at tip of achene (carpel?), 0.6 mm long, widest at base, bumpy; Achene glabrous.

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        images/TAS006880Det.jpg

Coll. No. 410, Potentilla biennis

Scanned 12 November 2012.

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        images/TAS00410Oview.jpg

Disturbed habitat of Coll. No. 835, Potentilla biennis

Photographed 19 June 2012

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        images/IMGP1220sm.jpg

Coll. No. 688, Potentilla biennis

Scanned 7 Nov 2011.

Coll. No. 688, 7 Nov 2011, characters observed while keying: Perennial herb (not shrub), to 4 dm, without stolons; Stem some hairs weakly glandular; Leaflets 3; Petals yellow, 1.5 mm; Carpels numerous on a convex receptacle; Styles attached at tip of achene (carpel?), 0.6 mm long, widest at base, bumpy; Achene glabrous.

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        images/TAS006880Oview.jpg

Potentilla fissa

Coll. No. 1911, Potentilla fissa

Photographed 1 December 2018.

Potentilla fissa Nutt. ex Torr. & A.Gray. (Syn: Drymocallis fissa (Nuttall) Rydberg) fide Ackerfield (2015).  Bigflower Cinquefoil.

Coll. No. 1911, 31 May 2018, characters observed: Perennial herb, rhizomatous, to 20 mm.; Stem, erect, green, multicellular viscid hairs; Leaves, basal and cauline, basal, 58 mm. × 16 mm. wide, compound, leaflets, #11, cauline, #3-4 per stem, alternate, compound, pinnate, stipules, 5 mm. × 2 mm. wide, lanceolate, entire to once shallowly toothed; petiole, 18 mm., multicellular viscid hairs, prior years remaining on plant (as sometimes described for P. rupincola), blade, 51 mm. × 22 mm. wide, leaflets, #13, petiolulate (not decurrent), 12 mm. × 9 mm. wide, viscid hairy, terminal leaflet (8)10 mm. side, margin, flat, serrate, teeth, 4-6 per side, on distal ¾, tip dark reddish; Inflorescence, clusters of 5+ flowers; Pedicels, 3 mm., hairy below; Calyx, lobes, #5, 7-7.5 mm. × 2.7-3.0 mm. wide, fused ±½, viscid hairy, epicalyx bractlets, 3-3.5 mm. × 0.8 mm. wide, ±½ sepals; Flowers, limb, 15 mm.; Petals, #5, 7-8 mm. × 5-9 mm. wide, obovate, yellow; Receptacle, hairy; Stamens, >25; Anthers, 1.4 mm. × 1 mm. wide; Ovary, many, superior, glabrous; Styles, 1.3 mm., attached laterally below top of ovary, thickest at base, tapered from middle, not warty; Stigma, #1; Achenes, glabrous.

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        images/IMGQ4797sm.jpg

Coll. No. 1364, Potentilla fissa

Scanned 21 November 2016.

Coll. No. 1364, 21 May 2016, characters observed: Perennial, herb, caespitose, to 20 cm., terrestrial, not stoloniferous, glandular-hairy throughout; Leaves, basal, 12.5 cm. × 2.6 cm. wide, pinnately compound, leaflets, #11; cauline, reduced in size and number of leaflets, 4 cm. × 2 cm. wide, leaflets, #7; Inflorescence, congested cyme, with 5-7 flowers; Flowers, calyx, lobes, #5, 11 mm. × 4.5 mm. wide, fused at base, bractlets, 5 mm. × 1.3 mm. wide; Receptacle, hairy, <1 mm., Petals, 9 mm. × 7.5 mm. wide, color yellow; Stamens, many; Ovaries, many; Styles, widest at middle, attached laterally below top of ovary.

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        images/TAS013640Oview.jpg

Coll. No. 1099, Potentilla

Photographed 3 May 2015.

Location records that use this photograph:

Article records that use this photograph:

  • Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Potentilla fissa.
  • Nightbird Gulch Trail, Mount Galbraith Park, Jefferson County, Colorado: 24990.
  • Field Notes: Coll. No. 1099, 3 May 2015.

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Coll. No. 1099, Potentilla fissa

Photographed 3 May 2015.

Location records that use this photograph:

Article records that use this photograph:

  • Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Potentilla fissa.
  • Nightbird Gulch Trail, Mount Galbraith Park, Jefferson County, Colorado: 24990.
  • Field Notes: Coll. No. 1099, 3 May 2015.

        images/IMGQ0419sm.jpg

Potentilla glaucophylla glaucophylla

Coll. No. 1477, Potentilla glaucophylla var. glaucophylla

Scanned 27 December 2016.

Coll. No. 1477, 29 Jun 2016, characters observed: Perennial herb, to 25 cm.; Flowering stems, ascending, reddish; Leaves, basal, petiole, 50 mm., sparsely hairy, blade, palmate, 25 mm. × 35 mm. wide, 5-7 leaflets, leaflets, incised, distal ½, about half-way to mid-vein, adaxial, very sparse hairy, abaxial, hairy mostly on veins, margins hairy, cauline, much reduced to sessile, ternately lobed, 17 mm.; Sepals, 5 mm. × 3 mm. wide, green, purplish on veins or at tips; Petals, 7 mm. × 8 mm. wide, bright yellow; Stamens, #20; Anthers, 0.7 mm.; Style, 2 mm., slender throughout, attached mid-achene.

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        images/TAS014770Infl.jpg

Coll. No. 1477, Potentilla glaucophylla var. glaucophylla

Photographed 27 December 2016.

Coll. No. 1477, 29 Jun 2016, characters observed: Perennial herb, to 25 cm.; Flowering stems, ascending, reddish; Leaves, basal, petiole, 50 mm., sparsely hairy, blade, palmate, 25 mm. × 35 mm. wide, 5-7 leaflets, leaflets, incised, distal ½, about half-way to mid-vein, adaxial, very sparse hairy, abaxial, hairy mostly on veins, margins hairy, cauline, much reduced to sessile, ternately lobed, 17 mm.; Sepals, 5 mm. × 3 mm. wide, green, purplish on veins or at tips; Petals, 7 mm. × 8 mm. wide, bright yellow; Stamens, #20; Anthers, 0.7 mm.; Style, 2 mm., slender throughout, attached mid-achene.

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        images/IMGQ3501sm.jpg

Potentilla gracilis

Hooker's Plate 2984 of Potentilla gracilis

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        images/HookerWJ1830_127Potgra_t2984.jpg

Potentilla gracilis elmeri

Potentilla gracilis var. elmeri in Sagehen Meadow.

Photograph taken 5 July 2010.

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        images/IMGP0289sm.jpg

Habitat of Potentilla gracilis var. elmeri in Sagehen Meadow.

Photograph taken 5 July 2010. Photo looks west from near the south margin of the meadow.

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        images/IMGP0279sm.jpg

Potentilla gracilis var. elmeri in Sagehen Meadow.

Photograph taken 5 July 2010.

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        images/IMGP0284sm.jpg

Potentilla gracilis fastigiata

Coll. No. 2581, Potentilla gracilis var. fastigiata

Photographed 9 December 2021.

This is image #9500 on my web site.

Plants of Colorado
Rosaceae

Potentilla gracilis Hook. var. fastigiata (Nutt.) S. Watson.  Slender Cinquefoil.

Lily Lake, Lake County, Colorado. North side of Lily Lake, on sloping ground down to North Fork West Tennessee Creek, near the end of the Pike-San Isabel Forest Road 131, 2.8 road miles west of US Highway 24, 140 km. southwest of the GNIS location of Golden. 39.3519°N, 106.3674°W. WGS 1984 Elev. 3233 m. Also collected here: Bistorta bistortoides, Arctostaphylos uva-ursi, Penstemon procerus, Erigeron glacialis, and Taraxacum officinale.

Collected by permit: Pike - San Isabel National Forest, 2021, issued: Mar 29, 2021, to: Tom Schweich.

Tom Schweich 2581. 13-Jul-2021

Coll. No. 2581, 12 July 2021, characters observed: Perennial herb, to 25 cm.; Stems, erect; Leaves, palmate compound, petiole 55 mm. + blade 30 mm. × 34 mm. wide, divided to base, leaflets #5-6, largest 30 mm. × 12 mm. wide, lobed near full length, ≤⅓ to base, gray-green, thinly silky sericeous above, somewhat less so below, cauline leaves much reduced, entire; Petals, yellow; Anthers, 0.7-1.0 mm. “ ... the variety [fastigiata] is essentially the catch-all category for most variation within P. gracilis that is not assigned elsewhere ...” Ertter, et al., in FNANM treatment of Potentilla.

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        images/IMGQ5518sm.jpg

Coll. No. 796, Potentilla gracilis var. fastigiata

Collected late season, but still with unopened buds; heavily infested with aphids. Northwestern Mono Basin, Copper Mountain area, Humboldt-Toiyabe National Forest. (38.0563,-119.2108,WGS 1984.) 9/10/2011 Jordan Spring, Mono County, California.

Scanned 30 Dec 2011.

30 Dec 2011, Coll. No. 796, characters observed while keying: Perennial herb, to 3 dm; Stolons 0; Stem ascending, lightly hairy, hairs similar length; Leaves palmately compound, basal leaves prominent in flowering; Leaflets regular toothed, teeth 11-15, ± 1/2 toward vein, surfaces similarly hairy; Pedicels 18 mm, straight; Flowers 7-10, in cymes; Sepals 5, < petals; Petals 5, 6 mm wide, slightly 2-lobed; Receptacle in fruit not strawberry-like; Stamens many (> 10); Style jointed to fruit, 2 mm, slender; and Achenes smooth, glabrous, not fleshy coated.

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        images/TAS007960Oview.jpg

Coll. No. 438.2, Potentilla gracilis var. fastigiata

Scanned 12 November 2012.

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        images/TAS004382Oview.jpg

Coll. No. 438.2, Potentilla gracilis var. fastigiata

Scanned 12 November 2012. The flower at right has been partially dissected to show that the styles are jointed to the top of the ovaries.

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        images/TAS004382Det.jpg

Potentilla hippiana × pulcherrima

Coll. No. 2840, Potentilla hippiana × pulcherrima

Photographed 7 November 2022.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Potentilla hippiana × pulcherrima.  Hybrid Potentilla.

Lippincott Ranch, Jefferson County, Colorado. In the saddle between Spring Brook and Bull Gulch drainages, very close to the Boulder/Jefferson County boundary, 2.08 km. north northwest of the main gate, 2.82 km. south southwest of the GNIS location of Eldorado Springs. 39.9131°N, 105.2783°W. WGS 1984 Elev. 2057 m. In grasses around scattered ponderosa pines. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with John Vickery 2840. 2-Jul-2022

Coll. No. 2840, 2 July 2022, characters observed: Perennial herb, to 38 cm., terrestrial, not particularly glandular; Stems, ascending to erect; Stipules, entire; Leaves, compound, basal, subpalmate, leaflets (5)7, 22-48 mm. × 9-14 mm. wide, toothed entire length, 9 teeth/side, densely white below, green above, stem leaves few; Sepals, 5 mm. × 2 mm. wide, green, epicalyx bractlets, 4 mm. × 1.2 mm. wide, green; Petals, 4 mm. × 3.5 mm. wide; Styles, 2 mm.

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        images/IMGQ5723sm.jpg

Subpalmate basal leaves of Coll. No. 2840, Potentilla hippiana × pulcherrima

Photographed 7 November 2022.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Potentilla hippiana × pulcherrima.  Hybrid Potentilla.

Lippincott Ranch, Jefferson County, Colorado. In the saddle between Spring Brook and Bull Gulch drainages, very close to the Boulder/Jefferson County boundary, 2.08 km. north northwest of the main gate, 2.82 km. south southwest of the GNIS location of Eldorado Springs. 39.9131°N, 105.2783°W. WGS 1984 Elev. 2057 m. In grasses around scattered ponderosa pines. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with John Vickery 2840. 2-Jul-2022

Coll. No. 2840, 2 July 2022, characters observed: Perennial herb, to 38 cm., terrestrial, not particularly glandular; Stems, ascending to erect; Stipules, entire; Leaves, compound, basal, subpalmate, leaflets (5)7, 22-48 mm. × 9-14 mm. wide, toothed entire length, 9 teeth/side, densely white below, green above, stem leaves few; Sepals, 5 mm. × 2 mm. wide, green, epicalyx bractlets, 4 mm. × 1.2 mm. wide, green; Petals, 4 mm. × 3.5 mm. wide; Styles, 2 mm.

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        images/TAS028400Lfsm.jpg

Potentilla hippiana effusa

Coll. No. 2537, Potentilla hippiana var. effusa

Photographed 19 November 2021.p>

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Potentilla hippiana Lehm. var. effusa (Douglas ex Lehm.) Dorn.  Wooly Cinquefoil.

Lippincott Ranch, Jefferson County, Colorado. Southwest corner of the "panhandle" southern part of the ranch, near the powerline, 21.7 km. north northwest of the GNIS location of Golden. 39.9001°N, 105.2731°W. WGS 1984 Elev. 1989 m. Open seasonally wet grassland, also nearby: Amorpha nana, and Gentiana affinis. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich, with John Vickery 2537. 29-Jun-2021

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        images/IMGQ5478sm.jpg

Coll. No. 1261, Potentilla hippiana var. effusa

Photographed 29 July 2015.

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        images/IMGQ1426sm.jpg

Coll. No. 1261, Potentilla hippiana var. effusa

Scanned 29 December 2015.

Coll. No. 1261, 29 Jul 2015, characters observed: Perennial herb, to 40 cm., long straight hairy to wooly throughout, eglandular; Leaves, basal and cauline, basal, compound, stipules, 18 mm., entire, petiole, 50 mm., blade, 50 mm. × 33 mm. wide, obovate, leaflets, #9, 23 mm. × 9 mm. wide, bases decurrent, margin, flat, toothed most of length; Inflorescence, cymose; Bractlets, 3 mm., slightly darker than calyx lobes; Calyx, lobes #5, 5 mm.; Petals, #5, 5 mm. × 4 mm. wide, yellow; Ovary, glabrous; Style, 2 mm., widest at base; Fruit, achene, #10, 1.5 mm. × 1 mm. wide, brown, smooth, glabrous.

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        images/TAS012610Infl.jpg

Coll. No. 1261, Potentilla hippiana var. effusa

Scanned 29 December 2015.

Coll. No. 1261, 29 Jul 2015, characters observed: Perennial herb, to 40 cm., long straight hairy to wooly throughout, eglandular; Leaves, basal and cauline, basal, compound, stipules, 18 mm., entire, petiole, 50 mm., blade, 50 mm. × 33 mm. wide, obovate, leaflets, #9, 23 mm. × 9 mm. wide, bases decurrent, margin, flat, toothed most of length; Inflorescence, cymose; Bractlets, 3 mm., slightly darker than calyx lobes; Calyx, lobes #5, 5 mm.; Petals, #5, 5 mm. × 4 mm. wide, yellow; Ovary, glabrous; Style, 2 mm., widest at base; Fruit, achene, #10, 1.5 mm. × 1 mm. wide, brown, smooth, glabrous.

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        images/TAS012610Leaf.jpg

Potentilla hippiana hippiana

Coll. No. 2646, Potentilla hippiana var. hippiana.

Photographed 25 January 2022.

Plants of Colorado
Rosaceae

Potentilla hippiana Lehm. var. hippiana.  Wooly Cinquefoil.

Morrison Creek, Jefferson County, Colorado. Buffalo Creek Recreation Area, along Morrison Creek and former National Forest Road 547, 1.95 km. south of National Forest Road 550, 62.6 km. south of the GNIS location of Golden. 39.3249°N, 105.2843°W. WGS 1984 Elev. 2415 m. Few small flowers on long stems. Southwest facing slope above Morrison Creek, Douglas fir forest.

Collected by permit: Pike - San Isabel National Forest, 2021, issued: Mar 29, 2021, to: Tom Schweich.

Tom Schweich 2646. 5-Aug-2021

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        images/IMGQ5561sm.jpg

Potentilla millefolia

Coll. No. 843, Potentilla millefolia

Scanned 20 February 2013.

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        images/TAS008440Oview.jpg

Potentilla norvegica

Coll. No. 1500, Potentilla norvegica

Scanned 7 January 2017.

Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, beside Mesa Top Trail, near the radio tower, 3.4 km. north of the GNIS location of Golden. 39.7855°N, 105.2142°W. WGS 1984 Elev. 1968 m.

Coll. No. 1500, 13 July 2016, characters observed: Perennial herb, to 25 cm., erect, ±spreading stiff hairy throughout, 1.5 mm., glands, sparse, obscure; Leaves, cauline, stipules, large, 8 mm. × 4 mm. wide, lanceolate, petiole 19 mm. + blade 22 mm. × 24 mm. wide, ternately compound, leaflets, 3(4); Calyx, sepals, 3.5-4.0 mm. × 2 mm. wide, fused >½; Corolla, petals, free, yellow; 1.5 mm. × 1 mm. wide; Stamens, most seen, #8; Style, 0.7 mm., thickest at base; Achenes, 0.6 mm., tan, minutely papillate.

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        images/TAS015000Oview.jpg

Potentilla pensylvanica

Coll. No. 2136, Potentilla pensylvanica

Photographed 3 December 2019.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Potentilla pensylvanica L.  Prairie Cinquefoil.

North Table Mountain Park, Jefferson County, Colorado. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.26 km. north northeast of the GNIS location of Golden. 39.7977°N, 105.209°W. WGS 1984 Elev. 1813 m. Leaflet margins revolute. Also collected here: Boechera fendleri, Delphinium carolinianum ssp. virescens, Senecio integerrimus, and Viola nuttallii.

Collected by permit: Jefferson County Open Space, 2019, issued: Mar 1, 2019, to: Tom Schweich.

Tom Schweich 2136. 11-Jul-2019

Coll. No. 2136, 11 July 2019, characters observed: Perennial herb, to 40 cm., erect; Leaves, basal and cauline, basal, 130 mm. × 25 mm. wide, compound, pinnate, leaflets, #11, margins, revolute; cauline, #7-10 per stem, alternate, reduced in size, compound, pinnately-lobed, stipules, large, to 25 mm., deeply cleft, petiole, 25 mm., blade, 70 mm. × 32 mm. wide, leaflets, #10, 30 mm. × 11 mm. wide, lobed ≥½, margin, revolute; Inflorescence, clusters of #5-7 flowers; Pedicels, 2-10 mm.; Sepals, #5, 5 mm., green, hairy, glands, abundant, epicalyx bractlets, 4.5 mm. × 1.8 mm. wide; Petals, #5, 5.3 mm. × 4.5 mm. wide, yellow; Receptacle, hairy, 3 mm.; Stamens, ±16; Anthers, 0.7 mm. × 0.6 mm. wide; Ovary, many; Styles, 1 per ovary, thickest near base, tapered throughout; Achenes, 1.3 mm. × 0.8 mm. wide, attachment, lateral, rugose.

Article records that use this photograph:

        images/IMGQ5104sm.jpg

Coll. No. 2864, Potentilla pensylvanica.

Photographed 23 November 2022.

Plants of Colorado
Rosaceae

Potentilla pensylvanica L.  Prairie Cinquefoil.

Salt Creek, Park County, Colorado. Small valley north of Salt Creek, formerly accessed by recently closed Forest Road 435A, 6.70 km. northwest of Antero Junction, 22.3 km. northeast of Buena Vista. 38.9601°N, 106.0017°W. WGS 1984 Elev. 2824 m. On open ground with Artemisia tridentata, A. frigida, Koeleria macrantha, and Nassella viridula.

Collected by permit: Pike - San Isabel National Forest, 2022, issued: Mar 29, 2022, to: Tom Schweich.

Tom Schweich 2864. 18-Jul-2022

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        images/IMGQ5745sm.jpg

Potentilla pulcherrima

Red-tipped glands in the inflorescence of Coll. No. 1989, Potentilla pulcherrima

Microphotographed 18 January 2019.

Coll. No. 1989, 23 July 2018, characters observed: Basal Leaves, petiole, 170 mm., blade, 55 mm. × 75 mm. wide, compound, palmate, leaflets, #7, 53 mm. × 16.5 mm. wide, cleft ½ for entire length, adaxial green sparse long unicellular hairs, abaxial silvery gray tomentose, Cauline Leaves, 4 per stem, alternate, reduced in size, stipules, large, 20 mm. × 7 mm. wide, ovate, entire; petiole, 18 mm., blade, 30 mm. ×. 34 mm. wide, leaflets, #5 or 7, 23 mm. × 9 mm. wide, lobed ⅓ to mid-rib entire length of leaflet, teeth, tiny dark tip; Inflorescence, 10-40 flowers, cymose, red-tipped glands on distal stems, petioles, and calyx. (These are said to be conspicuous but I never see them until I get to that couplet in the key.) Flowers, limb, 17 mm.; Petals, #5, 7.5 mm. × 4.5 mm. wide, obovate, yellow; Anthers, 0.8 mm.; Ovary, many, glabrous; Style, 2.0 mm., emerging from near top of ovary, filiform to slightly tapered throughout; Achenes, 0.7 mm. × 0.5 mm. wide, tan, glabrous.

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        images/TAS019890Infl.jpg

Coll. No. 1989, Potentilla pulcherrima

Photographed 19 January 2019.

Coll. No. 1989, 23 July 2018, characters observed: Basal Leaves, petiole, 170 mm., blade, 55 mm. × 75 mm. wide, compound, palmate, leaflets, #7, 53 mm. × 16.5 mm. wide, cleft ½ for entire length, adaxial green sparse long unicellular hairs, abaxial silvery gray tomentose, Cauline Leaves, 4 per stem, alternate, reduced in size, stipules, large, 20 mm. × 7 mm. wide, ovate, entire; petiole, 18 mm., blade, 30 mm. ×. 34 mm. wide, leaflets, #5 or 7, 23 mm. × 9 mm. wide, lobed ⅓ to mid-rib entire length of leaflet, teeth, tiny dark tip; Inflorescence, 10-40 flowers, cymose, red-tipped glands on distal stems, petioles, and calyx. (These are said to be conspicuous but I never see them until I get to that couplet in the key.) Flowers, limb, 17 mm.; Petals, #5, 7.5 mm. × 4.5 mm. wide, obovate, yellow; Anthers, 0.8 mm.; Ovary, many, glabrous; Style, 2.0 mm., emerging from near top of ovary, filiform to slightly tapered throughout; Achenes, 0.7 mm. × 0.5 mm. wide, tan, glabrous.

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        images/IMGQ4834sm.jpg

Coll. No. 1956, Potentilla pulcherrima

Photographed 27 December 2018.

Coll. No. 1956, 20 June 2018,characters observed: Perennial herb, to 40 cm.; Stems, erect, not rooting at nodes; Leaves, basal, compound, palmate, leaflets, #5 or 7 (never ternate), toothed ±entire length, #7-11 teeth, adaxial green, few long hairs, abaxial gray, densely tomentose; cauline, few (2-3); Inflorescence, #14 flowers, inconspicuous tiny red-tipped glands on sepals and epicalyx bractlets; Sepals, fused 1.5 mm. + free 5 mm. × 1.8 mm. wide, green, hirsute, glandular; Epicalyx bractlets, 4.5 mm. × 1.1 mm. wide, green, with reddish-brown tips; Petals, 8 mm. × 8 mm. wide, deltate, yellow; Styles, 2 mm., filiform, terminal.

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        images/IMGQ4820sm.jpg

Potentilla recta

Coll. No. 1680, Potentilla recta

Photographed 18 December 2017.

Coll. No. 1680, 28 June 2017, characters observed: Perennial herb, to 50 cm., hairy throughout, short (0.3 mm.) hairs glandular, long (4 mm.) hairs straight spreading eglandular; Leaves, stem, 7-8 per stem, alternate, stipules, to 20 mm., lobed, petioles, to 80 mm., blade, palmately compound, leaflets, #5, 45 mm. × 14 mm. wide, lobed ½ to mid-rib, progressively reduced above; Calyx, 9 mm. × 9 mm. wide, flattened at base; Petals, 8 mm., yellow; Style, 1.3 mm., tapered throughout, not appearing warty; Achene, 1 mm., attached laterally, reticulate in color, but not texture. “The long, stiff, spreading, tubercle-based hairs on stems and petioles of P. recta, overtopping a layer of short hairs and glands, also serve to distinguish this aggressive species from native P. gracilis at any stage of the life cycle (FNANM).”

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        images/IMGQ4496sm.jpg

Potentilla rivalis

Coll. No. 1959.3, Potentilla rivalis

Scanned 9 January 2019.

Coll. No. 1959.3, 21 June 2018, characters observed: Perennial herb, short-lived(?), 25 cm. to 45 cm., erect, not stoloniferous, hairs, 1 mm., eglandular, soft, not pustule-based; Leaves, basal and stem, equally thinly hirsute above and below, Basal, stipules, 10 mm., simple, free, petiole, 20 mm., blade, compound, ternate, 11 mm. × 12.5 mm. wide, Cauline, many per stem, stipules, 8 mm. × 2 mm. wide, lanceolate, entire, petiole, 6 mm., blade, 14 mm. × 14 mm. wide, leaflets, #3, 10 mm. × 5 mm. wide, lobed ≤½-mid-rib, teeth, red-tipped; Inflorescence, eglandular; Calyx, 3 mm. wide, flattened at base, lobes, 3 mm. × 2 mm. wide, green, epicalyx bractlets, 3 mm. × 1.2 mm. wide, Flowers, limb, 5 mm. wide, Petals, #5, 2 mm. × 1.2 mm. wide, obovate, yellow; Stamens, #12; Anthers, 0.3 mm. × 0.3 mm. wide, Ovary, many, glabrous; Styles, 0.8 mm., attached laterally below top of ovary, thickest at base; Stigma, #1; Achenes, 0.7 mm. × 0.5 mm. wide, tan, glabrous, smooth; without prominently septate gland-tipped trichomes, and with tiny smooth pale achenes, FNANM would put this in P. rivalis.

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        images/TAS019593Infl.jpg

Coll. No. 1682.1, Potentilla rivalis

Photographed 21 December 2017.

Coll. No. 1682.1, 28 June 2017, characters observed: Perennial herb, to 60 cm., in very wet places; Stem, erect and branched at base decumbent to ascending, proximal hairs weak, 1 mm., eglandular; Leaves, compound, palmate and ternate, petiole 0-62 mm. + blade 37 mm. × 40 mm. wide, leaflets, 3-5, both sides, green, sericeous, hairs weak; Sepals, 3 mm., green; Petals, 4 mm. × 2.5 mm. wide, yellow; Style, 0.7 mm.; Achene, 0.9 mm., light greenish-brown, smooth, maybe very minutely pappilate.

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Ternate leaf of Coll. No. 1682.1, Potentilla rivalis

Photographed 21 December 2017.

Coll. No. 1682.1, 28 June 2017, characters observed: Perennial herb, to 60 cm., in very wet places; Stem, erect and branched at base decumbent to ascending, proximal hairs weak, 1 mm., eglandular; Leaves, compound, palmate and ternate, petiole 0-62 mm. + blade 37 mm. × 40 mm. wide, leaflets, 3-5, both sides, green, sericeous, hairs weak; Sepals, 3 mm., green; Petals, 4 mm. × 2.5 mm. wide, yellow; Style, 0.7 mm.; Achene, 0.9 mm., light greenish-brown, smooth, maybe very minutely pappilate.

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        images/TAS016820ULeaf.jpg

Potentilla supina paradoxa

Pinnately compound leaf of Coll. No. 1682.2, Potentilla supina ssp. paradoxa

Photographed 21 December 2017.

Coll. No. 1682.2, 28 June 2017, characters observed: Perennial herbs, to 50 cm., in very wet places, not stoloniferous; Leaves, petiole 20 mm. + blade 42 mm. × 23 mm., pinnately compound, leaflets, 9, 15 mm. × 6 mm. wide, margins flat; Sepals, 4 mm., green; Petals, 4 mm. × 2.5 mm. wide, ±=sepals, yellow; Style, 0.6 mm., tapered, Achene, 1 mm., brown, large white protuberance.

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        images/TAS016820Leaf.jpg

Coll. No. 1682.2, Potentilla supina ssp. paradoxa

Photographed 21 December 2017.

Coll. No. 1682.2, 28 June 2017, characters observed: Perennial herbs, to 50 cm., in very wet places, not stoloniferous; Leaves, petiole 20 mm. + blade 42 mm. × 23 mm., pinnately compound, leaflets, 9, 15 mm. × 6 mm. wide, margins flat; Sepals, 4 mm., green; Petals, 4 mm. × 2.5 mm. wide, ±=sepals, yellow; Style, 0.6 mm., tapered, Achene, 1 mm., brown, large white protuberance.

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        images/IMGQ4499sm.jpg

Prunus americana

Coll. No. 2443, Prunus americana

Photographed 4 September 2020.

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        images/IMGQ5193sm.jpg

Coll. No. 2443, Prunus americana

Photographed 4 September 2020.

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        images/20200904_092707sm.jpg

Voucher of Coll. No. 2430, Prunus americana.

Photographed 5 January 2020. This voucher will be distributed to JCOS.

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        images/IMGQ5309sm.jpg

Coll. No. 2453, Prunus americana

Photographed 3 October 2021.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Prunus americana Marshall.  American Plum.

Clear Creek Canyon Park, Jefferson County, Colorado. Mouth of Clear Creek Canyon, south side of the canyon, i.e., north-facing slopes, along the Welch Ditch, on the ditch, 1.8 km. west of the GNIS location of Golde. 39.7516°N, 105.2364°W. WGS 1984 Elev. 1776 m. Fragrant, in full flower, with leaves emerging. Coordinates estimated with GoogleEarth. Location is within Golden s.l. and Jefferson County Clear Creek Canyon Park.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich 2453. 5-May-2021

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        images/IMGQ5418sm.jpg

Coll. No. 2443, Prunus americana

Photographed 25 October 2020.

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        images/IMGQ5207sm.jpg

Coll. No. 1598, Prunus americana

Photographed 4 May 2017.

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        images/IMGQ3912sm.jpg

Coll. No. 1598, Prunus americana

Photographed 4 May 2017.

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        images/IMGQ3911sm.jpg

Coll. No. 1093, Prunus americana

Photographed 30 April 2015.

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        images/IMGQ0373sm.jpg

Coll. No. 1093, Prunus americana

Photographed 30 April 2015.

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        images/IMGQ0370sm.jpg

Prunus andersonii

Coll. No. 502, Prunus andersonii

Photograph taken August 2, 2007.

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        images/IMG_1929sm.jpg

Prunus domestica

Coll. No. 1341, a plum, maybe Prunus domestica

Photographed 12 May 2016.

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        images/IMGQ2573sm.jpg

Coll. No. 1341, Prunus domestica

Scanned 9 November 2016.

Coll. No. 1341, 12 May 2016, characters observed; Small tree, to 3 m.; Stem, unarmed; Leaves, alternate, petiole, 3 mm., hairy, 2 glands at base, blade, likely immature, 20 mm. × 8 mm. wide, rhomboid / oblong / lanceolate, simple, bases equal, pinnately veined, margin toothed, hairy, but less on top than bottom; Pedicels, 8-10 mm., hairy below, thining above; Flowers, solitary in axils, perfect; Petals, free, white; Hypanthium, hairy inside; Ovary, superior; Style, 1; Stigma, 2; Fruit, unknown (not an acorn).

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        images/TAS013410Oview.jpg

Flowers of Coll. No. 1341, a plum, maybe Prunus domestica

Photographed 12 May 2016.

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        images/IMGQ2577sm.jpg

Prunus emarginata

Coll No 744, Prunus emarginata

Photograph taken 15 June 2011.

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        images/IMG_1882sm.jpg

Coll. No. 926, Prunus emarginata

Scanned on 28 February 2014.

The thing to see in this image is the glabrous top of the ovary and the three styles.

Coll. No. 926, 25 May 2013, characters observed: Woody shrub, 1-2 m.; Stem, glabrous, thorns 0; Leaves, ±evenly distributed on branches, simple, petiole 4 mm. + blade 17 mm. × 8-9 mm. wide, not leathery, margin entire to distally toothed, abaxially glabrous in flower, few hairs on petioles, adaxial leaf surface, and proximal margins, deciduous unknown; Petals, #5, obovate, 10 mm × 5 mm. wide; Ovary inferior, top glabrous; Styles 3; Fruit, unknown (plant in flower).

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        images/TAS009260Fl.jpg

Coll. No. 926, Prunus emarginata

Photographed 20 May 2013.

Coll. No. 926, 25 May 2013, characters observed: Woody shrub, 1-2 m.; Stem, glabrous, thorns 0; Leaves, ±evenly distributed on branches, simple, petiole 4 mm. + blade 17 mm. × 8-9 mm. wide, not leathery, margin entire to distally toothed, abaxially glabrous in flower, few hairs on petioles, adaxial leaf surface, and proximal margins, deciduous unknown; Petals, #5, obovate, 10 mm × 5 mm. wide; Ovary inferior, top glabrous; Styles 3; Fruit, unknown (plant in flower).

Somewhat ambiguous, in that is has some characteristics of A. utahensis, i.e., number of styles and narrow shape of leaf, but absence of hairs on ovary and abaxial leaf suggest A. alnifolia var. pumila.

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        images/IMG_1404sm.jpg

Coll. No. 926, Prunus emarginata

Scanned on 28 Feb 2014.

Coll. No. 926, 25 May 2013, characters observed: Woody shrub, 1-2 m.; Stem, glabrous, thorns 0; Leaves, ±evenly distributed on branches, simple, petiole 4 mm. + blade 17 mm. × 8-9 mm. wide, not leathery, margin entire to distally toothed, abaxially glabrous in flower, few hairs on petioles, adaxial leaf surface, and proximal margins, deciduous unknown; Petals, #5, obovate, 10 mm × 5 mm. wide; Ovary inferior, top glabrous; Styles 3; Fruit, unknown (plant in flower).

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        images/TAS009260Oview.jpg

Coll. No. 744, Prunus emarginata

Scanned 7 Jan 2012.

Coll. No. 744, 7 Jan 2012, characters observed while keying: Perennial, woody, erect shrub; Twigs with a terminal bud; Leaves alternate, in clusters, simple, entire, obovate, veins pinnate, gland-toothed; Infloresence a short (20 mm) raceme (not an umbel); Sepal entire (not gland-toothed); Flowers 6-8; Hypanthium urn-shaped, slightly narrowed at top; Ovary superior, 2 mm, glabrous; Style 1, 5 mm, linear (not tapered); Pistil 1; Stamens many (obs: 25); and Fruit glabrous.

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        images/TAS007440Oview.jpg

Prunus fasciculata

Desert Almond (Prunus fasciculata (Torrey) A. Gray) resprounting after the Hackberry Complex Fire.

Photograph taken October 15, 2005.

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        images/IMGP1930sm.jpg

Desert Almond (Prunus fasciculata) at Lobo Point.

        images/prufas.jpg

Prunus pensylvanica

Glandular teeth on leaf margin of Coll. No. 1354, Prunus pensylvanica

Microphotographed 19 November 2016.

Coll. No. 1354, 20 May 2016, characters observed: Small tree, to 3 m., branches unarmed; Leaves, petiole, 12 mm., very short hairy, blade, elliptic, 25 mm. × 20 mm. wide, margin, toothed, gland-tipped, veins of young leaves hairy abaxially; Flowers, clusters of 7-8 on pedicels to 14 mm.; Sepals, glabrous, few (2) glands on margins; Hypanthium, glabrous inside; Petals, 5-7 mm., white; Stamens, #12-15; Ovary, superior, glabrous; Style, #1, 4 mm., emerges from top of ovary; Fruit, unknown.

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        images/TAS013540LfMar.jpg

Coll. No. 1354, Prunus pensylvanica

Scanned 19 November 2016.

Coll. No. 1354, 20 May 2016, characters observed: Small tree, to 3 m., branches unarmed; Leaves, petiole, 12 mm., very short hairy, blade, elliptic, 25 mm. × 20 mm. wide, margin, toothed, gland-tipped, veins of young leaves hairy abaxially; Flowers, clusters of 7-8 on pedicels to 14 mm.; Sepals, glabrous, few (2) glands on margins; Hypanthium, glabrous inside; Petals, 5-7 mm., white; Stamens, #12-15; Ovary, superior, glabrous; Style, #1, 4 mm., emerges from top of ovary; Fruit, unknown.

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        images/TAS013540Oview.jpg

Prunus pumila besseyi

Coll. No. 2228.1, Prunus cf., P. pumila var. besseyi

Photographed 17 February 2020.

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        images/IMGQ5130sm.jpg

Prunus virginiana

Tent caterpillars on Prunus virginiana

Photographed 4 May 2020.

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        images/20200504_102505sm.jpg

Coll. No. 2845, Prunus virginiana.

Photographed 11 November 2022.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Rosaceae

Prunus virginiana L.  Chokecherry.

Tucker Gulch (lower), Jefferson County, Colorado. North bank of Tucker Gulch, the stream draining Golden Gate Canyon, above the stream, 130 m. along gulch generally west of North Ford Street, 2.61 km. north northwest of the GNIS location of Golden. 39.7714°N, 105.2324°W. WGS 1984 Elev. 1801 m. Dark red leaves, fruit. Common native shrub or small tree thriving in urban habitat.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich 2845. 6-Jul-2022

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        images/IMGQ5728sm.jpg

Flowers of Coll. No. 1340, Prunus virginiana

Photographed 12 May 2016.

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        images/IMGQ2571sm.jpg

Coll. No. 1340, Prunus virginiana

Photographed 12 May 2016.

FNANM distinguishes two varieties, an eastern var. virginia and a Rocky Mountains and west var. demissa (syn: var. melanocarpa) with plants of the high plains showing intergradation between those of the Rockies and those of the East. Based on measured characters used by FNANM of raceme length, petal length, and leaf shape and dimensions, this specimen is closer to var. virginiana, i. e., the eastern variety than it is to the western variety, i. e., var. demissa (syn: var. melanocarpa).

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        images/IMGQ2567sm.jpg

Prunus virginiana

Photographed 27 March 2017.

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  • Social Trail across Schweich Hill, Golden, Jefferson County, Colorado: at tree.
  • Field Notes: 27 Mar 2017.

        images/IMGQ3633sm.jpg

Coll. No. 1611, Prunus virginiana, below an, as yet, unidentified small tree.

Photographed 15 May 2017.

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        images/IMGQ3940sm.jpg

Coll. No. 1340, Prunus virginiana

Scanned 8 November 2016.

FNANM distinguishes two varieties, an eastern var. virginia and a Rocky Mountains and west var. demissa (syn: var. melanocarpa) with plants of the high plains showing intergradation between those of the Rockies and those of the East. Based on measured characters used by FNANM of raceme length, petal length, and leaf shape and dimensions, this specimen is closer to var. virginiana, i. e., the eastern variety than it is to the western variety, i. e., var. demissa (syn: var. melanocarpa).

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        images/TAS013400Oview.jpg

Last year's fruit on Prunus virginiana

Photographed 27 March 2017.

Article records that use this photograph:

  • Social Trail across Schweich Hill, Golden, Jefferson County, Colorado: at tree.
  • Field Notes: 27 Mar 2017.

        images/IMGQ3628sm.jpg

Habitat of Coll. No. 1833, Prunus virginiana

Photographed 17 May 2018.

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        images/IMG50193sm.jpg

Purshia mexicana stansburyana

Collection No. 166, Purshia mexicana var. stansburyana, Stanbury cliffrose.

Grid is 10x10 to the inch.

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        images/TAS001660oview.jpg

Collection No. 166, Purshia mexicana var. stansburyana, Stanbury cliffrose.

Grid is 10x10 to the inch.

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        images/TAS001660det.jpg

Collection No. 166, Purshia mexicana var. stansburyana, Stansbury cliffrose.

Grid is 10x10 to the inch.

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        images/TAS001660lvs.jpg

Cliff Rose on the top of Lobo Point.

        images/0072_3301_0700_5.jpg

Cliff Rose (Purshia mexicana var. stansburyana [Cowania m. v. s]).

Photograph taken in September 1998 along Deer Creek Highway in the Spring Mountains.

Article records that use this photograph:

  • Nevada State Route 158: 18000.

        images/3201-46.jpg

Purshia tridentata glandulosa

Desert Bitterbrush (Purshia tridentata glandulosa) resprouting after the Hackberry Complex Fire.

Photograph taken 7-Jun-06. This plant was lightly burned in the Mid Hills Campground.

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        images/IMGP2376sm.jpg

Parasite on Bitterbrush.

Photograph taken on August 31, 2002.

        images/TS7038-R1-22.jpg

Purshia tridentata tridentata

Coll. No. 475

The grid spacing is 1/4 inch.

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        images/TAS004750oview.jpg

Habitat of Bitterbrush (Purshia tridentata var. tridentata) in Sagehen Meadow.

Photograph taken 2 July 2010.

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        images/IMGP0247sm.jpg

Pyrus communis

Flowers on a Bartlett Pear, Pyrus communis L.

Photographed 5 May 2023.

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        images/20230505_142741sm.jpg

Rosa acicularis sayi

Coll. No. 3027, Rosa acicularis ssp. sayi.

Photographed 16 December 2023.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Rosaceae

Rosa acicularis Lindl. ssp. sayi (Schwein.) W. H. Lewis.  Say's Acicular Rose.

Guy Gulch, Jefferson County, Colorado. Terrace above creek in Guy Gulch, southwest side of County Road 70, 1.18 km. northwest of Centennial Ranch house, 13.3 km. (geodesic) northwest of the GNIS location of Golden. 39.801°N, 105.3652°W. WGS 1984 Elev. 2416 m. Prickles on new growth, leaflets #7. Around the base of a Douglas fir and Rocky Mountain maple.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3027. 3-Jul-2023

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        images/IMGQ5988sm.jpg

Coll. No. 2545, Rosa acicularis var. sayi

Scanned 22 November 2021.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Rosa acicularis Lindl. ssp. sayi (Schwein.) W. H. Lewis.  Say's Acicular Rose.

Lippincott Ranch, Jefferson County, Colorado. Southern "panhandle" part of the ranch, on a ridge in the north-central part, 22.0 km. north northwest of the GNIS location of Golden. 39.9026°N, 105.2688°W. WGS 1984 Elev. 1974 m. Slender prickles on new growth, leaflets 5-7, teeth gland-tipped. Growing in and around Rhus trilobata, few ponderosa pines on rocky ridge. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich, with John Vickery 2545. 29-Jun-2021

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        images/TAS025450Infl.jpg

Rosa arkansana

Coll. No. 1670, Rosa arkansana

Scanned 16 December 2017.

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        images/TAS016700Oview.jpg

Coll. No. 1456, Rosa arkansana

Scanned 18 December 2016.

Coll. No. 1456, 27 June 2016, characters observed: Low-growing perennial, to 20 cm.; Stem, straight slender unequal prickles, present on new growth; Leaves, alternate, compound, leaflets (7-8) 9, 20 mm. × 9 mm. wide, serrate, teeth dark-tipped, unclear whether there is glandular exudate, sparsely villous on both sides; Flowers, in clusters of 2-5; Sepals, 16 mm. × 3 mm. wide, abaxial, stalked glandular, adaxial, glandular hairy; Petals, 28 mm. × 21 mm. wide, color pink.

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        images/TAS014560Oview.jpg

New growth of Coll. No. 1670, Rosa arkansana

Scanned 16 December 2017.

The new growth has some armament. In this image, there is one prickle and 5-6 aciculi.

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        images/TAS016700Pr.jpg

Rosa eglanteria

Coll. No. 2836, Rosa eglanteria.

Photographed 4 November 2022.

Plants of Lippincott Ranch
Boulder and Jefferson Counties, Colorado
Rosaceae

Rosa eglanteria L.  Sweetbriar Rose.

Lippincott Ranch (North), Boulder County, Colorado. Right bank of the north fork of Spring Brook, 2.56 km. north northwest of the main gate, 2.33 km. south southwest of the GNIS location of Eldorado Springs. 39.9165°N, 105.2785°W. WGS 1984 Elev. 2011 m. Leaves abaxial dense glandular-stipitate. Open ponderosa pine forest. Lippincott Ranch is jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Boulder OSMP, issued: May 27, 2022, to: Tom Schweich.

Tom Schweich, with John Vickery 2836. 2-Jul-2022

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        images/IMGQ5721sm.jpg

Rosa woodsii

Coll. No. 3057, Rosa woodsii

Photographed 10 July 2023.

What attracted me to this specimen were the very long sepals relative to the petals.

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        images/20230710_105909sm.jpg

Rosa woodsii ultramontana

Coll. No. 473, Rosa woodsii var.ultramontana

The grid spacing is 1/4 inch.

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Overview of Coll. No. 672, Rosa woodsii var. ultramontana

Scanned 30 Oct 2011.

30 Oct 2011: Characters observed while keying: Shrubs large; Leaves glandless; Leaflet tip rounded (as opposed to truncate); Prickles generally terete, slender, straight or slightly curved; Sepals glandless, tips entire, persistent in fruit (remember the ovary is inferior, so the sepals are on top of the fruit); Petals 10-25 mm (measured 10-19 mm); Pistils >10 (observed 26±).

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Detail of Coll. No. 672, Rosa woodsii var. ultramontana

Scanned 30 Oct 2011.

30 Oct 2011: Characters observed while keying: Shrubs large; Leaves glandless; Leaflet tip rounded (as opposed to truncate); Prickles generally terete, slender, straight or slightly curved; Sepals glandless, tips entire, persistent in fruit (remember the ovary is inferior, so the sepals are on top of the fruit); Petals 10-25 mm (measured 10-19 mm); Pistils >10 (observed 26±).

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Coll. No. 691, Rosa woodsii var. ultramontana

Scanned 10 Nov 2011.

Article records that use this photograph:

  • Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Rosa woodsii.
  • Field Notes: Coll. No. 691.

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Rosaceae

Something Rosaceous at Forest Canyon Overlook

Photographed 24 September 2014.

SEINet lists the following Rosaceous taxa collected on Trail Ridge:

  1. Dryas hookeriana
  2. Dryas octopetala ssp. hookeriana
  3. Geum rossii var. turbinatum
  4. Pentaphylloides floribunda
  5. Potentilla diversifolia var. diversifolia
  6. Sibbaldia procumbens

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Rose Family?

Scanned 21 August 2015.

Leaf was partially dry, and then rehydrated before it was scanned.

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Rose Family?

Photographed 20 August 2015.

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Rose Family?

Scanned 21 August 2015.

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Rose Family?

Photographed 20 August 2015.

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Rubus "Olallie Berry"

Olallie Berries in my backyard.

The Olallie Berry is supposed to be a cross between a boysenberry and an oregon blackberry. Anthough I read that the boysenberry was developed from the California Blackberry (Rubus ursinus).

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Rubus armeniacus

Coll. No. 996, Rubus armeniacus

Photographed 16 July 2013.

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Habitat of Rubus armeniacus

Photographed 16 July 2013.

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Coll. No. 996, Rubus armeniacus

Scanned 16 July 2013.

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Rubus deliciosus

Coll. No. 1091, Rubus deliciosus

Photographed 30 April 2015.

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Coll. No. 1091, Rubus deliciosus

Photographed 30 April 2015.

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Coll. No. 1091, Rubus deliciosus

Photographed 30 April 2015. The shrub on the left is Ribes cereum.

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Rubus idaeus strigosus

Coll. No. 2506, Rubus idaeus var. strigosus

Photographed 31 October 2021.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Rubus idaeus L. var. strigosus (Michx.) Maxim.  American Red Raspberry.

Bull Gulch, Jefferson County, Colorado. Lippincott Ranch, gravel bar in Bull Gulch, just upstream of the ranch road crossing of the gulch, 22.9 km. north northwest of the GNIS location of Golden. 39.908°N, 105.277°W. WGS 1984 Elev. 1969 m. Many collections here, such as: Juncus ensifolius, Populus deltoides, Melilotus albus, Trifolium fragiferum, Ribes inerme, Epilobium brachycarpum, and Anaphalis margaritacea. Jointly owned by City of Boulder Open Space and Mountain Parks and Jefferson County Open Space.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich, with John Vickery 2506. 4-Jun-2021

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Rubus pubescens

Coll. No. 3053, Rubus pubescens.

Photographed 26 December 2023.

Plants of Colorado
Rosaceae

Rubus pubescens Raf.  Dwarf Red Blackberry.

Morrison Creek, Jefferson County, Colorado. Small terrace above Morrison Creek, near crossing of Little Scraggy Trail, 1.15 km. southwest of Little Scraggy Peak, 50.0 km. south of Golden; accessed by way of Kelsey Campground and Jefferson County Road 126. 39.3074°N, 105.2846°W. WGS 1984 Elev. 2528 m. Forested, shaded, wet bank of creek; also collected nearby: Osmorhiza depauperata, Pyrola chlorantha, Pedicularia canadensis, and Oryzopsis asperifolia.

Collected by permit: Pike San Isabel National Forest, 2023, issued: Jul 1, 2023, to: Tom Schweich.

Tom Schweich 3053. 10-Jul-2023

Coll. No. 3053, 10 July 2023, characters observed: Creeping perennial, to 25 cm., without stolons; Stem, unarmed, villous, glabrate proximally; Stipules, 8 mm., leaf-like, lobed; Leaves, alternate, compound, ternate, leaflets, ovate, 68 mm. × 33 mm. wide, serrate above middle, margins villous, tips, acuminate on smaller leaflets, otherwise acute, adaxial, glabrous, abaxial, soft straight hairs on veins; Inflorescence, 2-4 flowers; Petiole, 12 mm., stipitate glandular; Flowers, actinomorphic, hypanthium present; Sepals, 4 mm. × 1.5 mm. wide, joined at base, without bracteoles; Petals, 5 mm. × 2 mm. wide, spoon-shaped, free to hypanthium, white, fading pink; Stamens, many.

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Rubus ulmifolius anoplothyrsus

Coll. No. 997, Rubus ulmifolius var. anoplothyrsus

Scanned 16 July 2013.

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Coll. No. 998, Rubus ulmifolius var. anoplothyrsus

Photographed 16 July 2013.

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Sorbus aucuparia

Sorbus aucuparia planted on Illinois Street.

Photographed 2 March 2024.

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Coll. No. 2511, Sorbus aucuparia

Photographed 5 November 2021.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rosaceae

Sorbus aucuparia L.  European Mountain Ash.

Welch Ditch, Jefferson County, Colorado. On the easternmost edge of Clear Creek Canyon Park, north bank of the Welch Ditch, 1.72 km. west southwest of the GNIS location of Golden. 39.7518°N, 105.2358°W. WGS 1984 Elev. 1768 m. The few bud scales that could be found in these specimens were quite hairy. Also collected nearby: Holodiscus dumosus, and Prunus americana.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich 2511. 7-Jun-2021

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Undetermined

Something in the Rosaceae we found in the gulch.

Scanned 22 August 2021.

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Something in the Rosaceae we found in the gulch.

Photographed 13 August 2021.

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Something in the Rosaceae we found in the gulch.

Photographed 13 August 2021.

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Date and time this article was prepared: 9/22/2024 4:53:23 PM