quite glabrous, or with the twigs tomentulose; leaves ternate, linear, mucronate-acute, or obtuse, flat above, round-backed; flowers spiked or capitate; calyx-lobes ovate or ovato-lanceolate, acute or acuminate, rather shorter than the tube or equalling it; ovary 4–5 ovuled, glabrous or subcanescent; legume obliquely lanceolate, twice as long as the calyx. Erect, somewhat virgate, 1–2 feet high; branches erect, angular. Leaves pale green, erect, 4–6 lines long, 1/2 line wide. Flowers either laxly spiked or densely subcapitate, minutely pedicellate, the bracts ovato-lanceolate, equalling the calyx-tube; bracteoles lanceolate, acute at each end. Flowers yellow, quite glabrous. Var. γ. (in Hb. Upsal) is much stunted, with few flowers, and rather longer and more tapering calyx-lobes; it may be distinct.
