Astragalus drummondii Dougl.

Tium drummondii (Dougl.) Rydb. Bull. Torrey Club 32: 659. 1906.
Astragalus Drummondii Dougl.; Hook. Fl. Bor. Am. 1: 153. 1331. Tragacanlha Drummondii Kuntze, Rev. Gen. 744. 1891.
A cespitose perennial; stems 4-10 dm. high, sulcate, villous; leaves spreading or ascending, 7-15 cm. long, the rachis sulcate, villous; stipules lanceolate or ovate, distinct, green, attenuate; leaflets 15-31, oblong or elliptic, 1-2.5 cm. long, 3-10 mm. wide, glabrous above, villous beneath, obtuse, rounded, or slightly retuse at the apex; peduncles 5-15 cm. long; racemes at first rather dense, elongate in fruit, 5-10 cm. long; bracts lanceolate, 2-3 mm. long; flowers nodding; pedicels 2-4 mm. long; calyx black-villous, the tube 5 mm. long, 3 mm. broad, gibbous on the upper side at the base, the teeth subulate, 2 mm. long; corolla white or cream-colored, about 2 cm. long; banner oblanceolate, deeply notched, moderately arched at the middle; wings about 16 mm. long, the blade obliquely oblanceolate, nearly straight, equaling the claw, with a large reflexed auricle; keel-petals about 14 mm. long, the blades obliquely obovate, strongly arched towards the blunt apex, with a rounded basal auricle; pod drooping, glabrous, stipitate, the stipe nearly 1 cm. long, the body linear, 2-4 cm. long, 4 mm. wide and thick, tapering at the base, abruptly short-beaked at the apex, the upper suture acute, the lower deeply sulcate, the cross-section cordate, the septum fully 1 mm. wide; seeds brown, obliquely reniform, 3 mm. long.
Type locality: Eagle and Red-Deer Hills of the Saskatchewan.
Distribution: Plains from Saskatchewan and Alberta to northern New Mexico and Utah.