Desmanthus pringlei (Britton & Rose) F. J. Herm.

Acuan pringlei Britton & Rose, sp. nov
Shrubby, the slender glabrous branches decumbent or ascending, 2-3 dm. long. Stipules setiform, 3-5 mm. long; leaves 3-5 cm. long; petiole and rachis nearly filiform, puberulent; pinnae 4—6 pairs, with a small orbicular gland between the lower pair; leaflets 10-18 pairs, linear, acute or mucronate, ciliate, membranous, 2-3 mm. long, the faint midvein nearly central; peduncles filiform, glabrous, 4-6 cm. long; heads small, few-flowered; stamens 10; legumes 2 or 3, linear, slightly curved, short-beaked, 5-6 cm. long, 3-4 mm. wide.
Rich shaded places, Monterey, Nuevo Leon, June 26, 1888, Pringle 1902.