![]() | Field Notes (Continued) |
Tom Schweich |
![]() Topics in this Article: 1800s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 1991 1993 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2008 Tour de Swertia albomarginata Mono Lake, August 2008 2009 2010 2010s 2011 2012 2013 2014 2015 2016 2017 2018 2019 Contents Literature Cited |
When I first read the field notes of Annie Alexander and Louise Kellogg, I was fascinated by the descriptions they wrote about the places they went and the plants and animals they found there. By publishing my field notes on the Internet I hope to follow a little bit in their tradition. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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June, 2017
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| Thursday, June 1st
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Locations: North Table Mountain Park.
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North Table Mountain, from Mesa Spur trailhead on W. 58th Avenue, around the northeast side.
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Field identification: Campanula rotundifolia, many plants in bud, four open flowers, around the base of the boulder.
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Obs. No. 1564, Field identification: Undetermined, Leaves basal, stipules 10 mm., 2×pinnate, margins revolute; few flowers on a bare scape.
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Field identification: Tall robust grass, not Big Blue Stem.
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1647
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Field identification: Astragalus flexuousus.
| Astragalus flexuosus G. Don. Flexible Milkvetch. North Table Mountain Park, Jefferson County, Colorado. Lowest slopes of North Table Mountain, along the Mesa Spur Trail, below power line, 460 m. south of W. 58th Avenue, 4.77 km. north northeast of the GNIS location of Golden 39.7979°N, 105.2117°W. WGS 1984 Elev. 1788 m. Moderately disturbed mixed grass prairie.
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Other articles:
North Table Loop
along trail
1648
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Field identification: Unknown tree on northeast side of North Table Mountain, no reproductive structures visible, nothing that even looks like a bud. Last visited 29 Jul 2016.
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1649
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Field identification: Sphaeralcea coccinea.
| Sphaeralcea coccinea (Nutt.) Rydb. Scarlet Globemallow. North Table Mountain Park, Jefferson County, Colorado. Lower northeast slopes of North Table Mountain, on North Table Loop, near the Neighborhood Access Trail on West 53rd Drive. 39.7937°N, 105.1984°W. WGS 1984 Elev. 1831 m.
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1650
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Field identification: Potentilla fissa.
| Potentilla fissa Nutt. ex Torr. & A.Gray. Bigflower Cinquefoil. North Table Mountain Park, Jefferson County, Colorado. Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive, among rocks in a minor gulley. 39.7945°N, 105.1994°W. WGS 1984 Elev. 1832 m.
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Other articles: Golden Checklist Flora Poa bulbosa
1651
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Field identification: Poa bulbosa.
| Poa bulbosa L. Bulbous Bluegrass. North Table Mountain Park, Jefferson County, Colorado. Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive, among rocks in a minor gulley. 39.7945°N, 105.1994°W. WGS 1984 Elev. 1833 m. Also seen along the Mesa Spur Trail. Colorado Noxious Weed List C.
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Other articles:
North Table Loop
near W 53rd Dr
1652
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Field identification: Nasella viridula.
| Nassella viridula (Trin.) Barkworth. Green Needlegrass. North Table Mountain Park, Jefferson County, Colorado. Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive. 39.7951°N, 105.2008°W. WGS 1984 Elev. 1841 m.
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Other articles:
North Table Loop
near Metz parcel
1653
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Field identification:Phlox, maybe P. longifolia.
| Phlox multiflora A. Nelson. Mountain Phlox. North Table Mountain Park, Jefferson County, Colorado. North slopes of North Table Mountain, at the base of the steepest slopes, near North Table Loop trail, 4.7 km. north northeast of the GNIS location of Golden. 39.7954°N, 105.2022°W. WGS 1984 Elev. 1843 m. Trailing down a break in slope. In retrospect, this also appears to be at the mouth of a small watercourse. Coll. No. 1653, 1 Jun 2011, characters observed: Perennial, tufted, decumbent to ascending, 7-10 cm.; Internodes, 8-9 mm.; Leaves, cauline, opposite, 23 mm. × 2 mm. wide, ±linear, sharp-pointed; Flowers, solitary at ends of stems, pedicels, 12 mm., hairy, calyx, tube 5 mm. + lobes 6 mm., sparsely hairy, hyaline membranes flat; corolla, tube 14 mm + lobes 11 mm. × 7 mm. wide, color (not recorded), fading blue.
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Other articles:
North Table Loop
s. of williams parcel
1654
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Field identification: Symphoricarpos sp.
| Symphoricarpos rotundifolius A. Gray. Roundleaf Snowberry. North Table Mountain Park, Jefferson County, Colorado. North slopes of North Table Mountain, at the base of the steepest slopes, near North Table Loop trail, 4.7 km. north northeast of the GNIS location of Golden. 39.7956°N, 105.2034°W. WGS 1984 Elev. 1844 m. Long floral tube, ochroleucus, among deep grasses in a small swale. Coll. No. 1654, 1 Jun 2017, characters observed: Shrub, to 70 cm.; Leaves, opposite, 12 mm. × 9 mm. wide, ovate, margin entire; Inflorescence, terminal racemes on short branches; Calyx, 1.5 mm.; Corolla, tube 10 mm. + lobes 1.7 mm., color ochroleucus, few hairs near base of tube (around the style); Stamens, #5; Filaments, free 2 mm.; Ovary, inferior; Style, 3.5 mm., glabrous; Fruit, berry, white.
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| Monday, June 5th
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Slopes on northwest side of North Table Mountain.
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Obs. No. 1567, field identification: Orobanche fasciculata
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1655
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Field identification: Unknown forb, leaves basal, petioled, palmate veined, simple, Infl scapose panicle, calyx 5s, petals 5-6, small white, style 2; maybe Heuchera parvifolia.
| Heuchera parvifolia Nutt. ex Torr. & A. Gray. Littleleaf Alumroot. North Table Mountain Park, Jefferson County, Colorado. Western section of North Table Mountain, on a terrace beside a northward draining unnamed watercourse, 3.2 km. north of the GNIS location of Golden. 39.7845°N, 105.2226°W. WGS 1984 Elev. 1901 m. Forb, leaves basal, petioled, palmate veined, simple, Inflorescence scapose panicle, calyx 5s, petals 5-6, small white, style 2.
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1656
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Field identification: Oenothera suffrutescens.
| Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. Linda Tarde. North Table Mountain Park, Jefferson County, Colorado. Northwest section of North Table Mountain, on a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.28 km. north of the GNIS location of Golden. 39.7849°N, 105.2246°W. WGS 1984 Elev. 1913 . Short grass with Cercocarpus montanus, Artemisia frigida, and A. ludoviciana.
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Other articles:
Golden Checklist Flora
Euphorbia esula
1657
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Field identification: Euphorbia esula.
| Euphorbia esula L. Leafy Spurge. North Table Mountain Park, Jefferson County, Colorado. Northwest section of North Table Mountain, on a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.25 km. north of the GNIS location of Golden. 39.7847°N, 105.2249°W. WGS 1984 Elev. 1911 m. Colorado Noxious Weed List B.
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1658
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Field identification: Physocarpus monogynus.
| Physocarpus monogynus (Torr.) J.M. Coult. Mountain Ninebark. North Table Mountain Park, Jefferson County, Colorado. Steep north slope, northwest section of North Table Mountain, just below a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.32 km. north of the GNIS location of Golden. 39.7852°N, 105.2261°W. WGS 1984 Elev. 1890 m.
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| Thursday, June 8th
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Other articles: North Table Mountain Trail at social trail Locations:
North Washington Open Space.
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1659
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Field identification: Paronychia jamesii.
| Paronychia jamesii Torr. & A. Gray. James' Nailwort. North Table Mountain Park, Jefferson County, Colorado. Top of North Table Mountain, near Golden Cliffs Trail, 1.70 km. north of the GNIS location of Golden. 39.7709°N, 105.2199°W. WGS 1984 Elev. 1941 m. Very thin vegetation with patches of bare mesa caprock.
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| Saturday, June 10
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Locations:
North Table Mountain Park.
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North Table Mountain field trip for Colorado Native Plant Society.
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| Friday, June 16th
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Locations: North Washington Open Space.
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North Washington Open Space.
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1660
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Field identification: Bromus inermis.
| Bromus inermis Leyss. Smooth Brome. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7687°N, 105.2316°W. WGS 1984 Elev. 1792 m. Northeast corner of the parcel, where there is nearly a monoculture of smooth brome with a few Canada thistle. Some of the neighbors have taken to mowing this area.
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1661
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Field identification: Delphinium virescens.
| Delphinium carolinianum Walter ssp. virescens (Nutt.) R.E. Brooks. Carolina Laskspur. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7686°N, 105.2331°W. WGS 1984 Elev. 1821 m. Top of hill where there is less disturbance and fewer invasive weeds.
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1662
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Field identification: Tradescantia occidentalis.
| Tradescantia occidentalis (Britton) Smyth. Prairie Spiderwort. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7685°N, 105.233°W. WGS 1984 Elev. 1827 m. In a slightly more exposed area on the south side of the hill.
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1663
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Field identification: looks familiar, maybe Hymenopappus filifolia
| Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner. Many-Headed Fine-Leaved Wooly-White. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7685°N, 105.2331°W. WGS 1984 Elev. 1817 m. Finely divided leaves. In a slightly more exposed area on the south side of the hill where there are fewer non-natives and less disturbance.
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1664
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Field identification: Heterotheca villosa.
| Heterotheca villosa (Pursh) Shinners. Hairy False Goldenaster. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7686°N, 105.233°W. WGS 1984 Elev. 1818 m. Top of hill, center of parcel. Somewhat ambiguous as to var. minor vs. var. nana.
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1665
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Field identification: Gaillardia aristata.
| Gaillardia aristata Pursh. Blanketflower. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7686°N, 105.2332°W. WGS 1984 Elev. 1819 m. Top of hill, center of parcel.
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Other articles: Field Notes Coll. No. 1710, 14 Jul 2017
1666
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Field identification: Total mystery at first, no flowers open, but now I think it is Gypsophila paniculata, Baby's Breath.
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Literature Cited:
1667
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Field identification: Grass.
| Festuca saximontana Rydb. Rocky Mountain Fescue. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7687°N, 105.2334°W. WGS 1984 Elev. 1819 m. Western edge of hill, adjacent to social trail. Coll. No. 1667, 16 Jun 2017, characters observed: Perennial, to 30 cm.; Rhizomes, 0; Culm, very sparse scabrous below inflorescence; Leaves, sheath, open, ligule, membraneous, 0.2 mm., auricles, 0.5 mm., short hairy distally, blades, revolute; Inflorescence, panicle, 50 mm. × 9 mm. wide; Spikelets, 1 per node; Disarticulation, between florets; Florets, #6±, 9 mm. × 3.5 mm. wide; Glumes, #2, pubescent only on distal veins and margins, lower, 2.5 mm., veins 1; upper, 3.5 mm., veins 2, tip mucronate; Lemma, 4 mm., veins 5, obscure but best seen at base, awn, #1, 1.5 mm., from tip of lemma; Palea, ≥lemma, veins green, tip bifid; Anthers, 1.8-2.0 mm.
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1668
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Field identification: Erigeron with long trailing branches, maybe E. flagellaris.
| Erigeron divergens Torr. & A. Gray. Spreading Fleabane. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7686°N, 105.2335°W. WGS 1984 Elev. 1816 m. West-central part of hill, southwest slope.
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1669
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Field identification: Bromus japonicus.
| Bromus japonicus Thunb. Japanese Cheat Grass. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7687°N, 105.2344°W. WGS 1984 Elev. 1799 m. Far western, revegetated, part of parcel.
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1670
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Field identification: Rosa arkansana.
| Rosa arkansana Porter. Prairie Rose. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7684°N, 105.2329°W. WGS 1984 Elev. 1813 m. Armament of new growth quite variable. South side, near top of hill, scattered among grasses.
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1671
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Field identification: Oenothera suffrutescens.
| Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. Linda Tarde. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. West side of hill, on the edge of a path that the neighbors have mowed into the smooth brome.
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1672
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Field identification: Convolvulus arvensis -- Bind weed!!
| Convolvulus arvensis L. Field Bindweed. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7688°N, 105.232°W. WGS 1984 Elev. 1806 m. Colorado Noxious Weed List C.
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1673
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Field identification: Buchloë dactyloides.
| Buchloe dactyloides (Nutt.) Engelm. Buffalo Grass. North Washington Open Space, Jefferson County, Colorado. Small (4 acre) fallow city-owned parcel in northern Golden, near the intersection of Colorado Highway 93 and Washington Avenue, 1.75 km. northwest of the GNIS location of Golden. 39.7688°N, 105.232°W. WGS 1984 Elev. 1803 m. Pistillate plants only. Northeast section where the neighbors have mowed the smooth brome.
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| Monday, June 19th
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Locations: Ranson/Edwards Homestead Open Space Park.
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Ranson/Edwards Homestead Open Space, with Anthony Massaro and Jerry Bader.
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1674
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Field identification: Buchloë dactyloides
| Buchloe dactyloides (Nutt.) Engelm. Buffalo Grass. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.1 mile north on Plainview Road, then 120 m. northeast on an old ranch road now used as a service road. 39.8885°N, 105.2604°W. WGS 1984 Elev. 1916 m. In a somewhat elevated drier location between the tracks of an old road.
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1675
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Field identification: Lupinus, whitish flowers, robust, and less hairy than the typical L. argentea.
| Lupinus caudatus Kellogg var. argophyllus (A. Gray) S.L. Welsh. Kellogg's Spurred Lupine. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.1 mile north on Plainview Road, then 580 m. east northeast to the lowest terrace of Coal Creek. 39.8894°N, 105.2548°W. WGS 1984 Elev. 1907 m. Among deep grasses and near the mouth of a minor ephemeral creek. Coll. No. 1675, 19 Jun 2018, characters observed: Perennial, to 1 m.; Leaves, cauline, petiole 35-40 mm., palmately compound, 44 mm. × 70 mm. wide, leaflets, 7-9, 36 mm. × 9 mm. wide, oblanceolate, veins 1, adaxial glabrate, abaxial appressed hairy; Inflorescence, well above the leaves, 25 cm. × 3.5 mm. wide; Pedicel, 3.5 mm., recurved, silky hairy; Calyx, silky hairy, lower lobe, 9 mm., upper lobe, 6 mm., spur, more a bump, ≤1 mm.; Banner, 9 mm., reflexed 2.5 mm from tip, folded tightly over wings, back hairy inside folds; Wing, 10 mm. × 5.5 mm. wide, claw, 1.5 mm. × 1 mm. wide; Keel, 10 mm., hairy on bottom, tip dark, recurved <3 mm. giving closed appearance; Style, glabrous; Stigma, small, 4-lobed.
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1676
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Field identification: Spurge???
| Oxalis stricta L. Common Yellow Oxalis. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.1 mile north on Plainview Road, then 550 m. east northeast to Coal Creek. 39.8879°N, 105.255°W. WGS 1984 Elev. 1907 m. On a gravel and sand bar in Coal Creek.
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Literature Cited:
Other articles: Golden Checklist Flora Erigeron commixtus, Greene 1902
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We now treat E. commixtus as a synonym of E. tracyi.
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Literature Cited:
Other articles: Golden Checklist Flora Gray, 1849
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The “foregoing” was Erigeron cinereum (sp. nov.), now treated as a synonym of E. tracyi Greene. The head was described as “… as large as those on Bellis perennis …” and the involucre was described as “… hirsutum duplo superantibus …” [… coarse erect or ascending hairs doubly … ??? ]
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Literature Cited:
Other articles: Golden Checklist Flora Torrey & Gray, 1841-3
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Torrey & Gray (1841, p. 175) in Flora of North America proposed Erigeron divergens for the small fleabane that was previously illegimately published by Nuttall as E. divaricatuum.
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| Wednesday, June 28th
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Locations: Ranson/Edwards Homestead Open Space Park.
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Ranson/Edwards Homestead Open Space.
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1677
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Field identification: Poa, rhizomatous.
| Poa compressa L. Canada Bluegrass. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. 1.7 miles west of Colorado Highway 93 on Colorado Highway 72 (Coal Creek Canyon Road), 1.2 miles north on Plainview Road, then 67 meters east into the open field. 39.889°N, 105.2608°W. WGS 1984 Elev. 1923 m. Relatively short stature, in drier areas. Coll. No. 1677, 28 June 2017, characters observed: Perennial grass, 35-40 cm.; Rhizomes, numerous; Culms, compressed; Nodes, compressed; Leaves, sheath 40-55 mm., open top ¾, ligule, membraneous, 1 mm., blade, 40-55 mm., folded; Inflorescence, panicle, contracted, 45 mm. × 12 mm. wide; Spikelets, 4 mm. × 1.5 mm. wide; Disarticulation, above the glumes, between the florets; Glumes, #2, lower, 2 mm., veins #3, upper, 2.2 mm.; Florets, 5 per spikelet, at least some bisexual; Lemma, 2 mm., keeled, few hairs near base, veins, #5, neither equally spaced nor prominent, tip, obtuse, awns, 0; Palea, 2 mm., veins, green, sparsely scabrous, purple between; Anthers, 1.6 mm.
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1678
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Field identification: Apocynum, likely the hybrid.
| Apocynum ×floribundum Greene. Dogbane. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.3 miles north on Plainview Road, then 20 meters east into open prairie. 39.8904°N, 105.2616°W. WGS 1984 Elev. 1947 m. Along old road in the direction of the original homestead. Coll. No. 1678, 28 Jun 2017, characters observed: Perennial, 45-50 cm., in open prairie; Leaves, 40-57 mm. × 15-25 mm. wide, ovate, lanceolate, and oblong; Calyx, lobes, 1.4-1.6 mm.; Corolla, lobes, 2.5-3.0 mm., erect to spreading in distal ⅓, faded to thin pink veins and various blotches of pinkish color; Corolla lobes 1.56-2.14 times as long as the calyx lobes.
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1679
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Field identification: Erigeron flagellaris, stem hairs antrorsely appressed.
| Erigeron flagellaris A. Gray. Trailing Fleabane. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.3 miles north on Plainview Road, then 20 meters east into open prairie. 39.8904°N, 105.2616°W. WGS 1984 Elev. 1952 m. Stem hairs appressed antrorsely. Along old road in the direction of the original homestead.
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Other articles:
Golden Checklist Flora
Potentilla recta
1680
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Field identification: Potentilla recta.
| Potentilla recta L. Sulphur Cinquefoil. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 210 meters east northeast into open prairie. 39.8923°N, 105.2597°W. WGS 1984 Elev. 1942 m. Along a faint old ranch road that goes in the general direction of the original homestead. Colorado Noxious Weed List B. 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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Literature Cited:
1681
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Field identification: Achnatherum sp.
| Hesperostipa spartea (Trin.) Barkworth. Porcupine Grass. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 205 meters east northeast into open prairie. 39.8923°N, 105.2598°W. WGS 1984 Elev. 1940 m. Along a faint old ranch road that goes in the general direction of the original homestead. "Rare and relictual in tall grass prairie along the base of the Front Range (Weber & Wittman, 2012)." Coll. No. 1681, 28 June 2017; Perennial, to 80 cm., clumped; Stem, herbaceous; Leaves, blade and sheath differentiated, soft; Sheath, open; Ligule, membraneous, 5 mm., forked, auricles, 2.5, 5.0 mm.; Blade, flat, glabrous, sparsely scabrous; Inflorescence, 1 per culm, 25 cm., panicle, branching evident, >leaves; Rachis, glabrous, not extended beyond upper spikelet; Spikelets, many, similar, 1 per node; Compression, unremarkable; Disarticulation, above the glumes; Florets, 1 per spikelet, bisexual; Glumes, both present, ±equal, 25 mm., rounded, veins #5, awns 0, tip somewhat awn-like, margins entire; Callus, sharp, 2.5 mm.; Lemma, 11-14 mm., < glumes, tough, rolled, color, medium brown, veins ≥5, hairs, to 2 mm proximally to glabrous distally, color dark brown, awns, #1, 9.5 cm., twisted, attached, end; Palea, ±lemma, glabrous;
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Other articles: Glossary vestiture
1682
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Field identification: | This turned out to be a mixed collection of similar taxa in Potentilla Sect. Rivales. FNANM shed some light on this section:
The North American representatives of sect. Rivales are morphologically distinctive in being annuals, biennials, or short-lived perennials (especially in cold regions) with very short, conic-tapered styles. Plants grow primarily in wet habitats, especially where periodically inundated. These distinctions led E. L. Greene (1906c) to adopt Tridophyllum. However, the gross morphological cohesiveness is not matched by molecular monophyly. Instead, chloroplast data scatter Potentilla norvegica, P. rivalis, and P. supina among the core Potentilla, while P. biennis is sister species to the monophyletic Ivesia-Horkelia-Horkeliella clade (C. Dobeš and J. Paule 2010; M. H. Töpel et al. 2011). Nuclear markers, on the other hand, place P. norvegica as sister to the Ivesia-Horkelia-Horkeliella clade (Töpel et al.), suggesting a possible hybrid origin and/or multiple origins of the biennial habit.
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Other articles:
Glossary
ternate
1682.1
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Potentilla rivalis Nutt. Brook Cinquefoil.
| Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. 39.8947°N, 105.2583°W. WGS 1984 Elev. 1915 m. Very wet, water from an open running well. 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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1682.2
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Potentilla supina L. ssp. paradoxa (Nuttall) Sojak. Bushy Cinquefoil.
| Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. 39.8947°N, 105.2583°W. WGS 1984 Elev. 1915 m. Very wet, water from an open running well. 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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1683
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Field identification: Trifolium “Clover”
| Trifolium hybridum L. Alsike Clover. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. 39.8947°N, 105.2584°W. WGS 1984 Elev. 1908 m. Coll. No. 1683, 28 Jun 2017, characters observed: Perennial herb, to 50 cm., sprawling-ascending; Leaves, cauline, petiole to 90+ mm., stipules, to 25 mm., entire, acute, leaf compound, ternate, leaflets, 3, 20 mm. × 16 mm. wide, attached at a single point, margin serrate, generally glabrous, scant hairs along distal margins; Inflorescence, flowers in heads, peduncles, 55-95 mm., heads 22 mm. diameter, many flowers, bracts inconspicuous (1 mm.); Calyx, tube 1 mm. + lobes 2 mm.; Corolla, 7 mm.
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1684
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Field identification: Verbena bracteata.
| Verbena bracteata Lag. & Rodr. Large Bract Vervain. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. 39.8947°N, 105.2584°W. WGS 1984 Elev. 1908 m. Collected around a concrete foundation, perhaps of a former ranch house.
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1685
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Field identification: Cirsium arvense.
| Cirsium arvense (L.) Scop. Canada Thistle. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. 39.8946°N, 105.2584°W. WGS 1984 Elev. 1916 m.
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1686
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Field identification: Medicago sativa.
| Medicago sativa L. Alfalfa. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to a location just southeast of the original homestead. 39.8944°N, 105.258°W. WGS 1984 Elev. 1915 m.
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1687
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Field identification: Melilotus officinalis.
| Melilotus officinalis (L.) Lam. Yellow Sweet Clover. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to a location just southeast of the original homestead. 39.8943°N, 105.258°W. WGS 1984 Elev. 1916 m.
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1688
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Field identification: Erythranthe sp.
| Erythranthe floribunda (Douglas ex Lindl.) G. L. Nesom. Many Flowered Monkey Flower. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8872°N, 105.2572°W. WGS 1984 Elev. 1926 m. Margins of calyx teeth glandular-pubescent. Muddy flat with sheet flow water. Coll. No. 1688, 28 June 2017, characters observed: Annual, to 45 mm.; Stems, gland-tipped hairs; Leaves, cauline, opposite, petiole, an indistinct 0.4-0.7 mm. to a distinct 1.5 mm., blade, 8 mm. × 4.5 mm. wide, palmately veined, margin, entire to few-toothed; Calyx, tube 3.5 mm., + lobes 0.5 mm., uppermost lobe not longer, more like bottom two lobes are shorter, margins sparsely ciliate; Pedicels, 15-16 mm., glandular; Corolla, 6 mm. × 2 mm. dia., throat open, lobes, 1 mm., upper lobe ±=others, limb 3.7 mm., yellow.
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1689
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Field identification: Crassula, maybe C. aquatica.
| Crassula aquatica (L.) Schoenl. Water Pygmy Weed. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water. Coll. No. 1689, 28 June 2017, characters observed: Annual, to 22 mm.; Stem, rooting, ascending; Leaves, cauline, opposite, bases conjoined, 4 mm. × 0.5 mm. wide; Flowers, borne singly in axils; Petals, #4, 1 mm. × 1.2 mm. wide; Seeds, #12, 0.4 mm., oblong, lines longitudinal.
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1689.1
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Field identification: Phemeranthus parviflorus.
| Phemeranthus parviflorus (Nutt.) Kiger. Sunbright. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water.
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Literature Cited:
1689.2
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Field identification: Plagiobothrys scouleri.
| Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. hispidulus (Greene) Dorn. Scouler's Popcornflower. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water.
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Other articles:
Field Notes
Coll. No. 1917, 3 Jun 2018
1689.3
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Alopecurus carolinianus Walter. Carolina Foxtail.
Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water.
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1689.4
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Field identification: Juncus bufonius.
| Juncus bufonius L. Toad Rush. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water.
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1689.5
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Field identification: Veronica peregrina.
| Veronica peregrina L. ssp. xalapensis (Kunth) Pennell. Neckweed. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water.
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1689.6
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Field identification: Limosella aquatica.
| Limosella aquatica L. Water Mudwort. Ranson/Edwards Homestead Open Space Park, Jefferson County, Colorado. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. 39.8874°N, 105.2567°W. WGS 1984 Elev. 1926 m. Muddy flat with sheet flow water.
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| Thursday, June 29th
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Locations: North Table Mountain Park.
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North Table Mountain, from Dunraven Circle, to the radio tower and pond, then down by bushwhacking.
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1690
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Field identification: Buchloë dactyloides.
| Buchloe dactyloides (Nutt.) Engelm. Buffalo Grass. North Table Mountain Park, Jefferson County, Colorado. North side of North Table Mountain, in short vegetation on road to Table Rock water tank, 3.6 km. north of the GNIS location of Golden. 39.7882°N, 105.2219°W. WGS 1984 Elev. 1836 m.
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1691
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Field identification: Pascopyron smithii.
| Pascopyrum smithii (Rydb.) Á. Löve. Western Wheatgrass. North Table Mountain Park, Jefferson County, Colorado. North side of North Table Mountain, in short vegetation on road to Table Rock water tank, 3.6 km. north of the GNIS location of Golden. 39.7882°N, 105.2218°W. WGS 1984 Elev. 1850 m. Coll. No. 1691, 28 Jun 2017, characters observed: Perennial grass, to 75 cm., rhizomes, not seen; Leaves, ligule, short membraneous, auricles, 0, blade revolute; Inflorescence, bilateral spike; Rachis, internodes 6 mm.; Spikelets, 17 mm. × 10 mm. wide × 2 mm., not in capitate clusters, 1 per node, not oriented edgewise to rachis; Glumes, < lowest floret, narrowly lanceolate, slightly asymmetric, lower, 9.5 mm., upper, 10.6 mm.; Florets, #6±; Lemma, 11 mm., awns, 0; Palea, 9 mm.; Anthers, 4.5 mm.
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1692
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Field identification: Achnatherum sp.
| Nassella viridula (Trin.) Barkworth. Green Needlegrass. North Table Mountain Park, Jefferson County, Colorado. Northwest quadrant of North Table Mountain, interior canyon, below Mesa Top trail, 3.4 km. north of the GNIS location of Golden 39.786°N, 105.222°W. WGS 1984 Elev. 1894 m. West-facing hillslope, open grassy vegetation, non-rhizomatous.
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1693
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Field identification: grass.
| Pascopyrum smithii (Rydb.) Á. Löve. Western Wheatgrass. North Table Mountain Park, Jefferson County, Colorado. Rocky Mountain Front Range, northwest quadrant of North Table Mountain, interior canyon, below Mesa Top trail, 3.4 km. north of the GNIS location of Golden 39.786°N, 105.222°W. WGS 1984 Elev. 1897 m. Tight, compact head, rhizomatous. Same as Coll. No. 1691, but this one is clearly rhizomatous.
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1694
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Field identification: Melilotus officinalis.
| Melilotus officinalis (L.) Lam. Yellow Sweet Clover. North Table Mountain Park, Jefferson County, Colorado. Rocky Mountain Front Range, northwest quadrant of North Table Mountain, a lava-capped mesa of Denver Formation, along the side of Mesa Top Trail also the road to the radio towers, 3.3 km. north of the GNIS location of Golden. 39.7848°N, 105.2188°W. WGS 1984 Elev. 1933 m.
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1695
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Field identification: Eriogonum, maybe E. flavum.
| Eriogonum arcuatum Greene. Baker's Buckwheat. North Table Mountain Park, Jefferson County, Colorado. Rocky Mountain Front Range, northwest quadrant of North Table Mountain, a lava-capped mesa of Denver Formation, 210 m. east of radio tower, 3.3 km. north northeast of the GNIS location of Golden. 39.7846°N, 105.2135°W. WGS 1984 Elev. 1974 m. Rooted in thin soils and fractures of exposed caprock of mesa.
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1696
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Field identification: Limosella aquatica.
| Limosella aquatica L. Water Mudwort. North Table Mountain Park, Jefferson County, Colorado. Rocky Mountain Front Range, center of North Table Mountain, a lava-capped mesa of Denver Formation, along Tilting Mesa Trail near Mesa Top Trail, 3.3 km. north northeast of the GNIS location of Golden. 39.7853°N, 105.2111°W. WGS 1984 Elev. 1969 m. Drying muddy watercourse with Erythranthe sp. and Plagiobothrys scouleri.
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1697
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Field identification: Monarda fistulosa.
| Monarda fistulosa L. Wild Bergamot. North Table Mountain Park, Jefferson County, Colorado. Rocky Mountain Front Range, north slope of North Table Mountain, a lava-capped mesa of Denver Formation, just below the rim, 3.7 km north northeast of the GNIS location of Golden. 39.7878°N, 105.2111°W. WGS 1984 Elev. 1961 m.
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