Prairie Acacia

Acaciella angustissima (Mill.) Britton & Rose
Mimosa angustissima Mill. Card. Diet. ed. 8. no. 19. 1768.
Acacia glabrata Schl. Linnaea 12: 569. 1838.
Acacia angustissima Kuntze, Rev. Gen. PI. y-. 47. 1898.
A small tree or shrub, the branches angled, glabrous or hirsute. Leaves large; pinnae 10-many pairs; leaflets many pairs, linear, 4-7 mm. long, glabrous, acute, 1-veined; heads in terminal racemes; legume oblong, 4-7 cm. long, about 10 mm. wide, glabrous, or sparingly pubescent, acuminate, cuneate and stipitate at base.
Type locality : Campeche.
Distribution: Veracruz; Campeche; Yucatan; Guatemala.