Eastern Mojave Vegetation Coll. No. 3651, Symphyotrochum laeve var. geyeri.  
 

 

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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, Symphyotrichum laeve geyeri
Photographed 25 September 2026.

Plants of Colorado
East Slope of Tarryall Mountains, Jefferson County
Asteraceae

Symphyotrichum laeve (L.) Á. Löve & D. Löve var. geyeri (A. Gray) G.L. Nesom.  Smooth Blue Aster.

Twin Creek, Jefferson County, Colorado. About 250 meters upstream of Goose Creek where Twin Creek passes through a short, narrow canyon, 7.6 miles west and south on Forest Road 211 "Goose Creek Road" from its intersection with County Road 126 "Deckers Road," 64 km. south of Golden. 39.19585°N, 105.34338°W. WGS 1984 Elev. 2286 m. Rooted in bank of creek. with Mentha arvensis and Veronica americana. Brickellia grandiflora, Betula occidentalis, Humulus neomexicanus, Cornus sericea, Ribes cereum, R. inerme, Prunus virginiana, Rubus idaeus, Acer glabrum, Carex inops ssp. heliopila, and C. occidentalis. Mixture of burned and live mature Douglas fir and ponderosa pines suggest the Hayman Fire (2002) may have burned with low to medium intensity here.

Collected by permit: Pike-San Isabel National Forest, 2026, issued: Mar 18, 2026, to: Tom Schweich.

Tom Schweich 3651. 2-Sep-2026

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Other photos about Species - Asteraceae or Symphyotrichum laeve geyeri.

 

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Date and time this page was prepared: 10/2/2026 1:00:45 PM