Mimosa pigra L.

Mimosa pigra L. Cent.PL 1: 13. 1755
Mimosa asperata h. Syst. Nat. ed. 10, 1312. 1759.
A shrub, up to 2 m. high, the twigs setose, often pubescent, and more or less prickly. Pinnae 7-15 pairs; rachis setose or pubescent, often bearing many stout prickles, sometimes opposite between the piimae; leaflets linear, many pairs, 5-8 mm. long, about 1 mm. wide, pubescent on both sides; peduncles 2-5 cm. long; flowers densely capitate, pink; calyx 2 mm. long, ciliate; corolla 4-lobed; stamens 8; legume narrowly oblong, 3-8 cm. long, 10-12 mm. wide, densely hispid, 10-13-jointed, sessile or short-stipitate.
Type locality: Not cited.
Distribution: Jamaica; Cuba; Guadeloupe to Trinidad; Sinaloa and Veracruz to Panama, Peru and Brazil. Also in the Old World tropics.