suffruticose, slender, thinly strigillose; branches flexuous, subangular; leaves on short petioles, trifoliolate; leaflets linear, recurved, pointed, complicate, longer than the petiole; stipules minute, toothlike; racemes laxly few-flowered, on short peduncles; calyx-segments subulate; legumes tereti-compressed, about 4-seeded, thinly strigillose. A small, angularly-branched plant, 6–8 inches long. Petioles 1 1/2–2 lines long. leaflets 3–5 lines long, rigid, subglaucous. Peduncles (in fruit only seen) 1–1 1/2 inch long. Legume brown, 6–7 lines long, not a line wide. Differs from I. complicata, in the short petioles, stipules, racemes, legumes, &c. The foliage is not dissimilar; the pubescence much more scanty.
