PLANT : Subshrub 0.3–1.0 m tall, tomentose; glands inconspicuous on stems. LEAVES : pinnately compound; leaflets 5–9, oblong-oblanceolate to elliptic, 4–16 mm long, 1–3 mm wide, the terminal one 2–3× longer than the laterals. FLOWERS : in a dense, spheric raceme, 0.7–2 cm long; calyx densely pilose, with teeth 1.8–3.8 mm long, about the same length as the tube. FRUITS : 2.3–2.8 mm long, finely hairy and glandular at apex. NOTES : 2 vars., w U.S.; Mex. REFERENCES: Rhodes, Suzanne, June Beasley and Tina Ayers. 2011. Fabaceae. CANOTIA 7: 1–13.

Plant: Subshrub < 1 m, < 2 m wide, generally canescent, (sometimes becoming glabrous); glands of twigs << 0.5 mm wide; stem generally intricately branched Leaves: odd-1-pinnate; leaflets of middle leaves 5-9, 2-10 mm, narrowly oblong to obovate, terminal leaflet generally > others INFLORESCENCE: spike-like, ovoid or spheric, dense; bractlets 0 Flowers: calyx 4-7 mm, lobes ± = or > tube; corolla 4-6 mm, 2-colored (purple and white), puberulent, petals all arising from receptacle; stamens 10, filaments partly fused; ovules generally 2 Fruit: legume, indehiscent, included, ± 2.5-3 mm; Seed 1 Misc: Desert flats, washes, dunes; < 700 m.; Mar-May