Eastern Mojave Vegetation Coll. No. 3530, Grindelia subalpina.  
 

 

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If you have a question or a comment about this photograph you may write to me at: tomas@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address. 		  Asteraceae, Grindelia subalpina
Photographed 24 October 2025.

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

Grindelia subalpina Greene.  Subalpine Gumweed.

North Table Mountain Open Space (City of Golden), Jefferson County, Colorado. Along a social trail towards the north end of the City of Golden North Table Mountain Open Space, in a hummocky area that is probably an ancient landslide, 3.0 km. north of the GNIS location of Golden 39.77643°N, 105.22546°W. WGS 1984 Elev. 1908 m. Leaves dentate-apiculate. Also seen or collected here: Heterotheca villosa, Symphyotrichum porteri, Lupinus argenteus, Monarda fistulosa, Bromus inermis, and B. japonicus.

Collected by permit: City of Golden, 2025, issued: Mar 14, 2025, to: Tom Schweich.

Tom Schweich 3530. 18-Sep-2025

Coll. No. 3530, 18 September 2025, characters observed: Perennial herb, 45-60 cm.; Stem, light brown, glabrous; Leaves, cauline, alternate, sessile, blade 45 mm. × 12 mm. wide, reduced distally, oblanceolate, adaxially glandular, margins, dentate, teeth separated 3-5 mm., apiculate; Inflorescence, heads, #3-4 per stem, not overtopped by leaves, showy, gummy exudate; Involucre, 10 mm. × 13 mm. wide, globose, resinous; Phyllaries, in 5± unequal graduated series, lower << rest of involucre, upper 8 mm. × 1.3 mm. wide, resinous, margins, flat, tips, acuminate, lower coiled 360°; Pappus, few, well developed bristles, 3.5 mm, readily falling; Style, 2-branched, stigmatic portion 0.6 mm. + appendages 0.6 mm.; Cypsela, 1.6 mm. × 0.6 mm. wide, black, glabrous.

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Date and time this page was prepared: 4/4/2026 8:05:01 PM