Astragalus miser var. oblongifolius

(Timber Milkvetch)

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Astragalus miser var. oblongifolius, FR265, Gunnison National Forest, Gunnison Co. 4054

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Astragalus miser var. oblongifolius, FR265, Gunnison National Forest, Gunnison Co. 4050

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Astragalus miser var. oblongifolius, FR265, Gunnison National Forest, Gunnison Co. 4038

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Astragalus miser var. oblongifolius, FR265, Gunnison National Forest, Gunnison Co. 4047

Scientific Name Astragalus miser var. oblongifolius USDA PLANTS Symbol ASMIO
Common Name Timber Milkvetch ITIS Taxonomic Serial No. 192623
Family Fabaceae (Pea) SEINet
Reference
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Description Life zones and habitat: Plains to subalpine (5200 to 11300 ft.); dry or moist soils in mountain meadows and forests.
Plant: Low-growing perennial, variable in stature, with stems 1 to 8 inches long, thinly to rather densely covererd with very short hairs.
Leaves: Odd pinnately-compound 2 to 8 inches long with 11 to 19 linear, linear-elliptic leaflets 0.2 to 1.2 inches long; upper surfaces mostly smooth, lower thinly to rather densely covererd with very short hairs. Odd pinnately-compound leaves up to 1-inch long, each with 3 to 7 spine-tipped linear-elliptic or linear-oblanceolate leaflets up to 2/3-inch long; surfaces flat or curled inward with appressed or dolobriform hairs.
Inflorescence: Racemes 0.6 to 4 inches long (in fruit) with 3 to 15 pea-like flowers; calyx about 0.2 inches long; petals whitish sometimes slightly purplish and with purple veins; banner about 0.4-inch tall.
Bloom Period: May to August.
Fruit: Small oblanceolate pods, 0.6 to 1 inch long, covered with very short appressed hairs; sometimes purple-dotted.
References: "Flora of Colorado" by Jennifer Ackerfield and Worldwide Flora Online (2022): Astragalus miser var. oblongifolius (Rydb.) Cronquist.
BONAP Distribution Map


Map Color Key
Colorado Status:
Native

© Tom Lebsack 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County