Astragalus crassicarpus Nutt.

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Astragalus crassicarpus, known as ground plum or buffalo plum, is a perennial species of flowering plant in the legume family, Fabaceae, native to North America. It was described in 1813. The fruit is edible and was used by Native Americans as food and horse medicine. It is a host of afranius duskywing larvae. It is also known as groundplum milkvetch and pomme de prairie.

Description

The species is 1 to 2 feet tall with pinkish purple flowers and edible fruit pods. The plant grows from thick taproots and several long hairy stems lay on the ground. Its leaves are alternate, between 4–13 cm long, each with 15–27 leaflets that are either elliptic or oblong. The flowers grow in elongated groups among the leaves and the fleshy fruit, measuring 1.5 to 2.5 cm in width, is round. It blooms from May to June.

Astragalus crassicarpus is known as ground plum, though it shares this name with some other species in the genus Astragalus such as Astragalus plattensis. The two species are sometimes confused, though in general, the fruiting pods of A. crassicarpus are glabrous (hairless) while those of A. plattensis are hairy.

Astragalus crassicarpus - Wikipedia

Astragalus crassicarpus (Ground Plum): Minnesota Wildflowers

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