Giant Sensitive Plant is a rambling shrub, with stem
velvet-hairy, prickles short, in 4-rows. Leaves are up to 10 cm long;
sidestalks opposite, up to 5 cm long; leaflets up to 35 pairs, up to 5
x 1 mm, oblong, flat at base, hairless; axis prickled. Flower-head are
up to 1.5 cm across, in branch-end racemes, stalked. Florets are many,
3 mm long, pink; stamens 10, filaments 6 mm long. Pods 2-5 cm long,
bristly, black when mature. Giant Sensitive Plant is native to Tropical
America, a weed in India. Flowering: November-March
Identification credit: P.S. Sivaprasad
Photographed in Pachamalai, Tamil Nadu.
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The flower labeled Giant Sensitive Plant is ...