Mimosa somnians Willd.

Mimosa somnians H. & B.; Wilid. Sp. PI. 4: 1036. 1806
Herbaceous or becoming woody at base, ^rect or with spreading branches, sometimes nearly 2 m. high, usually bearing many glandular hairs and scattered prickles. Petioles slender, unarmed or prickly, glandular-pubescent or glabrous; pinnae 2-8; leaflets 12-28 pairs, linearoblong, 2-4 mm. long, glabrous, nearly 1 mm. wide; flowers pink, capitate, 4-parted; stamens 8 ; corolla striate ; legume linear, 4-7 cm. long, 2-3 mm. wide, glandular-pubescent or glabrous, long-stipitate, acute, the margins sparingly short-setose or naked.
Type locality: South America.
Distribution: Oaxaca and Veracruz to Panama, Colombia. Bolivia and Paraguay.