Copper Mine Milkvetch

Atelophragma cobrense (A. Gray) Rydb. Bull. Torrey Club 55: 162. 1928.
Astragalus cobrensis A. Gray, PI. Wright. 2: 43. 1853. Tragacantha cobrensis Kuntze, Rev. Gen. 944. 1891.
A cespitose perennial; stems several, decumbent at the base, 1-2 dm. high, sparingly strigose; leaves spreading, 2-4 cm. long, the rachis strigose; stipules ovate, 3 mm. long, at least the lower connate; leaflets 11-18, obovate, cuneate at the base, usually retuse at the apex, 3-8 mm. long, 1.5-4 mm. wide, glabrous above, pilose beneath ; peduncles 2-5 cm. long; racemes 1-3 cm. long; bracts lanceolate, 2 mm. long; pedicels about 2 mm. long; calyx strigose with mixed white and black hairs, the tube 1.5 mm. long, 1 mm. wide, the teeth nearly 1.5 mm. long, subulate; corolla purplish, 7 mm. long; banner obovate, strongly arched at the middle, retuse at the apex; wings much shorter, the blade oblanceolate, falcate; keel-petals still shorter, the blade obliquely obovate; pod grayish-strigose* almost sessile, the body elliptic, 12-15 mm. long, about 6 mm. wide and 4 mm. high, slightly sulcate on the lower suture, the septum fully 1 mm. wide.
Type locality: Santa Rita del Cobre, New Mexico. Distribution: Mountains of southwestern New Mexico.