Thermopsis montana

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Scientific Name Thermopsis montana (Thermopsis rhombifolia var. montana) USDA PLANTS Symbol THMO6
Common Name Mountain Goldenbanner, Golden Banner ITIS Taxonomic Serial No. 508158
Family Fabaceae (Pea) SEINet
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Description Life zones and habitat: Foothills to subalpine (5500 to 10600 ft.); dry or moist areas, shaded areas in woodlands, meadows, steambanks in the central Colorado mountains and western counties.
Plant: Erect, leafy perennial 16 to 32 inches tall with erect branching stems.
Leaves: Ternate (trifoliate) leaves on petioles 3/8 to 1-5/8 inches long; each leaflet 3/4 to 3-1/2 inches long, elliptic to lanceolate or oblanceolate with pointed tips.
Inflorescence: Yellow pea-like flowers in a dense raceme 2-3/8 to almost 10 inches long; 2 to 23 flowers each.
Bloom Period: May to August.
Fruit: Strictly erect pods, 1-5/8 to 2-1/4 inches long.
References: "Flora of Colorado" by Jennifer Ackerfield, "A Field Guide to Wildflowers of the Rocky Mountains" by Carl Schreier, USDA Plant Guide, Mountain Goldenbanner, by Derek Tilley and American Southwest.
BONAP Distribution Map

Colorado Status:

© Tom Lebsack 2021