Tephrosia langlassei Micheli

Cracca langlassei (M. Mieheli) Rose, Contr. U. S Nat. Herb. 12: 270. 1909.
Tephrosia Langlassei M. Mieheli, Mem. Soc. Geneve 34: 250. 1903.
A perennial herb, about 5 dm. high; stem purplish or reddish, pilose; leaves 1-1.5 dm. long; stipules linear-subulate, pilose, 1 cm. long; petiole 1 cm. long; rachis pilose; leaflets 9-11, broadly lanceolate, obtuse at the base, acute or acuminate, 4-8 cm. long, 1.5-2 cm. wide, green and pubertilent above, reddish and pilose beneath, reticulate-venose; racemes terminal and in the upper axils; flowers 1-3 at each node; bracts linear-subulate, pilose; calyx pilose, the tulx3 mm. long, the lobes lance-subulate, 5 mm. long; corolla lilac, about 2 cm. long; banner orbicular; wings obliquely obovate, with a rounded basal auricle; keel acutish; stamens monadelphous, but the uppermost one free at the base; pod 4-5 cm. long, 5-7 nun. wide, pilose-villous, 5-7-seeded.
Tveii locality: Sierra Madre, Guerrero or Michoacan. Distribution: Jalisco to Oaxaca.