Astragalus duheyuanensis (Fabaceae), a New Species from Central China

Astragalus duheyuanensis Q.L. Gan & Z.W. Ke (Fabaceae) is described from western Hubei Province, central China, and illustrated. It morphologically resembles A. sinicus, but differs from it by having completely isolated stipules, shorter peduncles, a blue-purple corolla, a keel-like bulge on the upper centre of the standard, and smaller, orange-yellow seeds.