Shorttooth Canadian Milkvetch

Astragalus torreyi Rydberg, sp. nov
A perennial; stem 3-5 dm. high, somewhat angled, glabrous or sparingly strigose, flexuose; leaves 8-12 cm. long, spreading; stipules scarious, lance-deltoid or lanceolate, 8-10 cm. long; leaflets 17-21, oblong or lance-oblong, acutish at each end, or obtuse at the apex, 1-2.5 cm. long, 3-8 mm. wide, strigose on both sides, in age glabrate above; peduncles 7-10 cm. long; racemes dense, 3-6 cm. long; bracts lanceolate, about 5 mm. long; calyx short-pubescent, the tube 1.5-2 mm. long, the upper two teeth deltoid, the lower three subulate; corolla ochroleucous, 12-15 mm. long; banner narrowly obovate, slightly arched ; wings nearly as long, the blade oblong-oblanceolate, with a large basal auricle; keel-petals shorter, the blade broadly lunate, rounded at the apex; pod oblong, subterete, abruptly acute at each end, short-pubescent, suleate on the lower suture, slightly curved, the beak slightly recurved.
Type collected near Empire City, Nevada, in 1865, Torrey (herb. Columbia University and N. Y. Bot. Gard.).
Distribution: Nevada, eastern California, and southern Idaho.