Astragalus hallii

(Hall's Milkvetch)

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Astragalus hallii, Frisco Peninsula, Summit Co. 4590

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Astragalus hallii, Frisco Peninsula, Summit Co. 4595

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Astragalus hallii, Lake Dillon, Summit Co. 5611

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Astragalus hallii, Lake Dillon, Summit Co. 5598

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Astragalus hallii, Frisco Peninsula, Summit Co. 4597

Scientific Name Astragalus hallii USDA PLANTS Symbol ASHA2
Common Name Hall's Milkvetch ITIS Taxonomic Serial No. 25531
Family Fabaceae (Pea) SEINet
Reference
Click Here
Description Life zones and habitat: Foothills to subalpine (7200 to 10800 ft.); dry, rocky slopes, woodlands, and meadows.
Plant: Ascending or creeping perennial with numerous slender stems up to 2 feet long.
Leaves: Pinnately-compound leaves up to 4 inches long, each with 11 or more small elliptic-oblong or oblanceolate leaflets less than 1/4 to about 1/2-inch long with rounded tips; blades folded nearly in half.
Inflorescence: Small racemes of 10 or more purple-to-lavender/white pea-like flowers; calyx tube reddish to purple with grey or black hairs.
Bloom Period: June to August.
References: American Southwest, Wildflowers of Peak 7 and "Flora of Colorado" by Jennifer Ackerfield.
BONAP Distribution Map
Colorado Status:
Native

© Tom Lebsack 2022

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