Crotalaria dubia - Deceptive Rattlepod

Deceptive Rattlepod is an annual herb, 1-1.5 m tall, with stems round, densely velvet-hairy. Leaves are simple, leaf-stalk short; leaf blade obovate to ovate-oblong, 3-5 x 1.5-3 cm, thickly papery, both surfaces densely rusty hairy, veins below raised, base wedge-shaped, tip blunt to tapering and with a short sharp point. Flowers are borne in many flowered, congested oblong racemes at branch-ends, bracts ovate-triangular, 6-7 mm. Flowers are yellow; standard oblong, about 5 mm, base with 2 appendages, tip blunt to retuse; wings narrowly elliptic, as long as standard; keel slightly rounded, narrowed at tip from middle and extended into a long beak. Sepal-cup 2-lipped, 8-10 mm, divided for about 1/2 its length; sepals lanceshaped. Flower-stalks are about 1 mm; bracteoles inserted at base of sepal-cup tube, similar to bracts. Seedpods are ovoid, 5-7 mm in diameter, included in sepal-cup, 6-8-seeded, hairless. Deceptive Rattlepod is found in S India, NE India to China (Yunnan) and Indo-China. Flowering: October-November.