Bimucronate Mimosa

Mimosa bimucronata (DC.) Kuntze, Rev. Gen. PL 198. 1891
Acacia himiuronala DC. Prodr. 2: 469. 1825.
Mimosa sepiaria Benth. Journ. Bot. Hook. 4: 395. 1842.
Mimosa thyrsoidea Griseb. Fl. Brit. W. Ind. 219. I860.
A shrub or tree, up to 8 m. high, unarmed or prickly, the twigs and inflorescence puberulent. Pinnae 4-8 pairs; leaflets 15-40 pairs, linear-oblong, 5-10 mm. long, about 1 mm. wide, acute, glabrous; inflorescence paniculate, sometimes 3 dm. long; peduncles 1.5-3 cm. long; flowers capitate, glabrous; corolla 5-lobed; stamens 10; legume 4-5 cm. long, 7-S mm. wide, unarmed, straight, glabrous, 5-8-jointed.
Type locality: Brazil.
Distribution: Naturalized in Jamaica. British Guiana. Brazil.