Tephrosia macrantha Pringle

Cracca macrantha (Pringle) Rose, Bot. Gaz. 40: 143. 1905
Tephrosia macrantha Pringle, Garden & Forest 7: 173. My 1894. Tephrosia macrantha Rob. & Greenm. Proc. Am. Acad. 29: 383. Je 1894.
A tall perennial, shrubby below, 2-4 m. high; branches angled and ribbed, fulvous-velutinous; leaves 7-13 cm. long; stipules subulate, 10-12 mm. long; petiole 2-3 cm. long, as well as the rachis sulcate, and subvelutinous; leaflets 17-23, oblong, elliptic, or lance-oblong, obtuse to cuneate at the base, obtuse or acutish at the apex, strigose on both sides, somewhat canescent beneath, tawny on the ribs, 2-4 cm. long, 6-18 mm. wide; racemes terminal and in the upper axils, the terminal one often branched, 1.5-2.5 dm. long; bracts filiform-subulate, 8-10 mm. long; calyx finely pubescent, the tube 3 mm. long, the lobes lanceolate, 3 mm. long, attenuate; corolla about 2.5 cm. long, lilac, tinged yellow; banner orbicular; wings oblong, oblique at the base; keel-petals lunate, semi-obovate, with a rounded basal auricle; pod 5-7 cm. long, 4 mm. wide, falcate.
Type locality: Tequila, Jalisco.
Distribution: Jalisco and Guerrero.