An erect annual herb to c. 2 m high; stems +/- glabrous, sometimes glaucous. Leaves simple, narrow-obovate to obovate, 5-10 cm long, 8-40 mm wide, +/- glabrous, lower surface sometimes sparsely pubescent; petiole 3-6 mm long; stipules leafy to 9 mm long. Racemes 13-40 cm long, many-flowered; pedicels 8-20 mm long; bracts leafy, 7-15 mm long; calyx 8-15 mm long, glabrous; corolla c. 20 mm long, clear yellow; wings shorter than keel; keel incurved at middle, beak 8-13 mm long, apex twisted. Pod 40-65 mm long, glabrous. Seeds 4.5 mm long, yellow ochre and black. |
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