Soft Locoweed is a perennial herb, with woody root-stock. Aerial stem is
much reduced, covered with persistent leaf bases. Leaves are about 3-22 cm
long. Stipules are opposite the leaves, hairy. Leaf stalks are about 2-9
cm long. Leaflets are 21-43, opposite, lower sometimes alternate,
stalkless, 7-17 mm long, 2-5 mm broad, obovate, elliptical, lance-shaped,
oblong, orbicular to oblong-lanceolate, entire, with tip pointed, blunt or
truncated, hairy on both sides. Flowers are borne in long-stalked
condensed racemes. They are purple-pink, fading to blue.
Stalks are about 7-27 cm. Bracts are 4-6 mm long. Calyx
is 7-10 mm long, longest teeth being 2.5-4 mm. Vexillum is 9-16 mm long,
wing 8-15 mm long, keel 7-14 cm long. Fruit is about 1.3 cm long,
excluding the 3 mm long point. Soft Locoweed is found in the Himalayas, from Pakistan to C. Nepal, at altitudes of 2700-3600 m.
Flowering: May-September.