shrubby, erect, densely much branched; branches augularly furrowed, thinly strigillose; leaves subsessile, digitately 5-foliolate; leaflets linear, acute, furrowed above, with revolute margins and strong midrib, minutely strigillose, subcanescent beneath; stipules minute, toothlike; racemes subsessile, shorter than the leaves, loosely pluriflowered; bracts minute, persistent; calyx canescent, its lobes broadly subulate; petals subglabrous or puberulent; legumes terete, several-seeded, glabrous. A densely branched, strong bush, 1–2 feet high; branches and twigs erect, densely leafy. Leaves either exactly digitate on an obsolete petiole, or obliquely and imperfectly digitate on a little longer petiole. Leaflets 5–7 lines long, scarcely a line wide, with thickened and recurved margins. Flowers pinky-purple, very minutely downy, 2–2 1/2 lines long. Legumes uncial, when ripe quite glabrous. This has much the aspect of I. brachystachya, but the leaves are digitate, not pinnate; and the legumes glabrous not tomentose, &c.
