Herb to shrub 2 m high (Duke 9431), branched above with 2-3 branchlets per node, glabrous, angular. Leaves 4-5 in whorls; petioles usually 4-7 mm long, glabrous; blades elliptic, somewhat attenuated basally, acuminate apically, the margins remotely crenate, glabrous, densely punctate, the more mature 4-5.5 cm long and 2-2.5 cm wide. Racemes terminal, glabrous, the axis to 7 cm long, the flowers ? loose; bracts ovate-lanceolate, ciliate, deciduous, 0.8-1 mm long. Flowers greenish-white, the pedicels to 2 mm long; outer sepals marginanlly ciliate, the largest ovate, concave, 2 mm long, the smaller 2 ovate to oblong, 1 mm long, usually shortly connate basally, each with 2 large glands; wings broadly obovate, apically rounded, basally short-clawed, marginally ciliate, persistent, 3.5 mm long, 2.5 mm wide; petals with upper pair obovate, rounded, 3 mm long, glab-rous; keel 3 mm long with a crest 6-20-lobed (mostly 6). Capsules widely oblong to subglobose, glabrous, 4 mm long, 3-3.5 mm wide; seeds ovate, curved, 4 mm long, pubescent with hairs copper colored at maturity; arils 2.8-3 mm long, the 2 lobes oblong, appressed.
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