shrubby; twigs, petioles, and midrib of the leaflets prickly; petioles slender, villous; leaflets transversely elliptical, obtuse or apiculate, glabrous and glaucous; racemes lateral or terminal, few or many flowered, shortly pedunculate or subsessile; calyx glabrous, campanulate, subtruncate, obsoletely and bluntly lobulate; vexillum scarcely velvetty; vexillary stamen adnate to the split tube; legumes clavato-stipitate, torulose, incurved, armed with prickles. A divaricately branched, rigid shrub, 4–6 feet high, armed with sharp, subulate, reflexed prickles. The bark of the twigs is pale and rugulose. Petioles 1–2 1/2 inches long, slender, woolly when young. Leaflets broader than long, 3/4–1 inch long, 1–1 1/2 inch broad, pale, especially beneath. Flowers 1–1 1/2 inch long, the vexillum scarlet, tipped with green.
