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Description: Annual herbs; stems erect, up to 13 dm long,
ridged, appressed short-pubescent. Leaves simple, oblanceolate, 3.3-9.2
cm long, 1-3.8 cm wide, veins 5-8 on each side of midvein, upper surface
glabrous and punctate, lower surface appressed short-pubescent, apex
rounded or occasionally acute, usually retuse, base cuneate, petioles up
to 3 mm long, stipules narrowly rhombic-ovate, up to 0.5 mm long.
Flowers 17-24 mm long, 13-23 in terminal, somewhat lax inflorescences,
rachis up to 27 cm long , bracts narrowly triangular, 2-2.5 mm long,
recurved, usually persistent, bracteoles at or above mid-pedicel,
narrowly triangular; calyx appressed short-pubescent, the tube 4.5-6.5
mm long, the lobes 5.5-10 mm long, lateral lobes distinct at apex;
petals yellow with fine purple lines near base, standard 14-18 mm long,
17-25 mm wide, wings oblong-lanceolate, 13-15 mm long, 9-11 mm wide,
keel petals short, beak twisted, margins ciliate; elongated anthers
2.8-3.1 mm long, short ones 0.8-1 mm long. Pods dark brown to black at
maturity, 3-4 cm long, nonstipitate, glabrous. Seeds ca. 23 per pod, tan
to brown, up to 4.5 mm long, smooth |
