Littleleaf Leadtree

Caudoleucaena retusa (Benth.) Britton & Rose
Leucaena retusa Benth.; A. Gray. PI. Wright. 1: 64. 1852. Acacia sabeana Buckl. Proc. Acad. Phila. 1861: 453. 1862.
A shrub, or a tree up to about 8 m. high, the twigs, petioles, leaf-rachis and peduncles pubescent or villous. Stipules ovate or lanceolate, subulate-tipped, 10-15 mm. long; glands more or less elevated, globose to subcylindric, borne between some or all the pairs of pinnae ; petioles 1.5-5 cm. long; pinnae 2-5 pairs, slender-stalked; leaflets 4-8 pairs, oblong, elliptic, or the upper obovate, 0.7-2.5 cm. long, reticulate-veined, villous when young, glabrous when mature, the midvein more or less excentric, the apex obtuse, rounded, retuse or mucronate; peduncles rather stout, solitary or clustered, about as long as the petioles or shorter; heads globose; bractlets 4-6 mm. long, the subulate tip about as long as the ovate base; calyx tubular, membranous, about 2.5 mm. long; petals slightly longer than the caljrx; stamens 6-8 mm. long; legmne 15-25 cm. long, 8-12 mm. wide, the apex acute, the base cuneate, the stipe 5-10 mm. long; seeds 6-8 mm. long.
Type locality: Bottom of the Rio Nueces, Texas.
Distribution: Texas and New Mexico.