Astragalus flexuosus

(Flexible Milkvetch)


Astragalus flexuosus, Pawnee Buttes, Weld Co. 7535


Astragalus flexuosus, Pawnee Buttes, Weld Co. 7541


Astragalus flexuosus, Pawnee Buttes, Weld Co. 7554


Astragalus flexuosus, Pawnee Buttes, Weld Co. 7536

Scientific Name Astragalus flexuosus USDA PLANTS Symbol ASFL2
Common Name Flexible Milkvetch ITIS Taxonomic Serial No. 25517
Family Fabaceae (Pea) SEINet
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Description Life zones and habitat: Plains to montane (5500 to 10300 ft.); drier soils in meadows, and other open areas.
Plant: Sprawling perennial less than 2 ft. tall with a tangled, vine-like appearance; several to many stems tending to recline with up-turned tips; herbage moderately hairy (finely strigose).
Leaves: Odd-pinnately-compound leaves 2 to 3 inches long with each blade divided into 11 to 25 linear to oblong-lanceolate leaflets, 1/8 to 3/4-inch long; tips bluntly-rounded or with a small notch.
Inflorescence: Loose racemes arising from the leaf axils on peduncles 1 to 2-3/8 inches long with 10 to 30 pea-like blossoms; corollas are whitish to pale purple, 3/8 to 5/8 inch long on a very short stalk; the calyx tube has fine hairs and is less than 1/4-inch long with pointed lobes
Bloom Period: May to August.
References: "Flora of Colorado" by Jennifer Ackerfield, Minnesota Wildflowers and Minnesota Dept. of Natural Resources.
BONAP Distribution Map

Colorado Status:

© Tom Lebsack 2022

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