Mimosa calcicola Robinson

Mimosa calcicola B. L. Robinson, Proc. Am. Acad. 33: 325. 1898.
A shrub, about 1 m. high, or lower, the twigs puberulent, bearing a prickle below the nodes. Petioles slender, 5-10 mm. long; pinnae 1-3 pairs; leaflets 2 or 3 pairs, oblong, 2-5 mm. long, obtuse, puberulent; peduncles axillary, slender, about 1.5 cm. long or shorter, puberulent; flowers capitate, white, pubescent; corolla 5-lobed; stamens 10; legume linear, 3-4 cm. long, about 4 mm. wide, 4-6-jointed, finely tomentose, unarmed, scarcely constricted.
Type LOCALITY': Tehuacan, Puebla. Distribution: Puebla.