Description:
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Erect, generally well-branched annual or short-lived perennial up to 2 m tall, branches appressed pubescent to tomentellous; leaves 3-foliolate, estipulate; leaflets variable, mostly 3-17 x 0.8-4.5 cm, linear-lanceolate to elliptic-lanceolate or elliptic, appressed puberulous or pubescent beneath, petiole shorter than leaflets; racemes 6-35 cm long, shortly pedunculate, densely many flowered; bracts 3-12 mm long, caudate, bracteoles inserted at base of calyx, 3-5 mm long, filiform; calyx 3.5-5 mm long, becoming basally truncate and deflexed against the pedicel, appressed pubecent, lobes narrowly triangular acuminate, ± as long as tube or longer; standard obovate-circular or obovate-elliptic, yellow with brown or maroon veining; wings ± as long as the keel; keel 6-8 mm long, strongly rounded about the middle with a narrow sharp beak incurved at the tip; pod very shortly stipitate, 1.2-1.6 x 0.5-0.7 cm, ellipsoid-oblong, shortly pubescent to tomentellous, 10-16-seeded; seeds c. 3 mm long, obliquely cordiform, smooth, brownish. |