Groundcover Milkvetch

Batidophaca hosackiae (Greene) Rydberg
Astragalus Hosackiae Greene, Bull. Calif. Acad. 1: 157. 1885.
Astragalus humistratus Hosackiae M. E. Jones, Contr. W. Bot. 10: 58. 1902.
A perennial, with a cespitose caudex; stems several, decumbent, branched, 2-4 dm. long, terete, sparingly pilose with kinky hairs; leaves 2-4 cm. long; stipules deltoid, membranous, connate around the stem, 5-8 mm. long; petioles less than 1 cm. long; leaflets 11-15, lanceoblong, acute, glabrous above, pilose with loose hairs beneath, 5-12 mm. long, about 2 mm. wide, crowded; peduncles 3-6 cm. long; racemes usually short and dense, 2-4 cm. long; bracts lance-linear, about 5 mm. long; calyx pilose, the tube about 2 mm. long, the teeth subulate, fully 2 mm. long; corolla apparently dirty-white, 8 mm. long; banner obovate, retuse, striate; wings nearly as long, the blade obliquely obovate, with a large auricle; keel-petals broadly lunate, obtuse; pod about 1 cm. long, arcuate, strigose, acute on the tipper suture, rounded on the lower, not sulcate, thicker than wide.
Type locality: Northern Arizona [Flagstaff].
Distribution: Arizona and western New Mexico.