Astragalus recurvus Greene

Tium recurvum (Greene) Rydberg
Astragalus recurvus Greene, Bull. Calif. Acad. 1: 155. 1885.
A perennial, with a woody taproot and short, cespitose caudex; stems sparingly strigose, 2-3 dm. high, often purplish; leaves 3-6 cm. long, spreading; leaflets 17-19, linear-oblong to obovate, 4—10 mm. long, 1-4 mm. wide, obtuse to retuse at the apex, glabrous above, sparingly strigose beneath; peduncles 4—8 cm. long; bracts lanceolate, 1-2 mm. long; pedicels 1-2 mm. long, recurved; calyx strigose, the tube 2 mm. long and broad, the teeth lance-subulate, 1 mm. long; corolla 5-6 mm. long, purple-tinged; banner obovate, strongly arched at the middle; wings of about the same length, the blade obovate, slightly falcate; keel-petals shorter, the blade broadly lunate; pod lunate, about 2 cm. long, 2.5-3 mm. wide, and 2 mm. thick, purpletinged, glabrous, the upper suture convex and acute, the lower concave and sulcate, the crosssection cordate, the septum 1 mm. wide.
Type locality: Mountains of northern Arizona.
Distribution: Arizona.