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Astragalus amphioxys (Crescent milkvetch)
Anderson, Wynn

Astragalus amphioxys

Astragalus amphioxys A. Gray

Crescent Milkvetch, Crescent Milk-vetch

Fabaceae (Pea Family)


USDA Symbol: ASAM5

USDA Native Status: L48 (N)

A tufted, grayish, hairy plant with pinnately compound leaves and lavender, pink, or red-violet pea flowers in short racemes.

Crescent Milk-vetch can be distinguished from many similar species by its pod, which has only one chamber and a lower seam that lies in a groove rather than forming a prominent ridge.


From the Image Gallery

32 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Alternate
Fruit Type: Legume

Bloom Information

Bloom Color: Pink , Purple , Violet
Bloom Time: Mar , Apr , May , Jun


USA: AZ , CO , NM , NV , TX , UT
Native Distribution: Southern Nevada east to western Colorado, central New Mexico, and extreme western Texas.
Native Habitat: Sandy or gravelly soil in deserts, arid grasslands, and among piņon and juniper.

Additional resources

USDA: Find Astragalus amphioxys in USDA Plants
FNA: Find Astragalus amphioxys in the Flora of North America (if available)
Google: Search Google for Astragalus amphioxys


Record Modified: 2021-02-24
Research By: TWC Staff

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