Astragalus pueblae M. E. Jones

Atelophragma pueblae (M. E. Jones) Rydb. Bull. Torrey Club 55: 164. 1928. Astragalus Pueblae M. E. Jones, Contr. W. Bot. 14: 35. 1912.
A cespitose perennial; stems many, filiform, branched, prostrate or spreading, glabrous; leaves 3-4 cm. long, ascending, the rachis nearly glabrous; leaflets linear, 4—7 mm. long, conduplicate, strigose beneath; peduncles 4—5 cm. long; racemes subcapitate, 1 cm. long; bracts lanceolate, 1-1.5 mm. long; pedicels 1.5 mm. long; calyx black-hairy, the tube 1.5 mm. long, the teeth subulate, less than 1 mm. long; corolla purple, 6 mm. long; banner obovate, notched at the apex, strongly arched; wings shorter, the blade obliquely obovate; keel-petals 1 mm. shorter, the blade semi-orbicular; pod oblong, sessile, 7 mm. long, 2 mm. high and broad, sparingly strigulose, sulcate on the lower suture; seeds 8-10, obliquely suborbicular, 2 mm. long.
Type locality: Esperanza, Puebla. Distribution: Known only from the type locality.