Astragalus crassicarpus var. berlandieri Barneby

Geoprumnon mexicanum (A. DC.) Rydb.; Small, Fl. SE. U. S
616, 1332. 1903.
Astragalus mexicanus A. DC. Mem. Soc. Geneve 6: 224. 1833.
Tragacantha mexicana Kuntze, Rev. Gen. 946. 1S91.
Astragalus crassicarpus pachycarpus M. E. Jones, Contr. W. Bot. 8: 16, in part. 1898.
A perennial, with a rootstock; stems several, decumbent at the base, about 3 dm. long, striate, sparingly strigose; leaves 8-15 cm. long, ascending or spreading; stipules deltoid or lance-deltoid, 6-S mm. long, acuminate; leaflets 21-31, obovate, oval or elliptic, pilose on both sides or glabrate above, 6-12 mm. long, 4-5 mm. wide; peduncles 5-7 cm. long; racemes about 3 cm. long; bracts lanceolate, 5-6 mm. long; calyx strigose-pilose, the tube 8-9 mm. long, the teeth subulate, 5 mm. long; corolla 25-2S mm. long; banner narrowly obovate, retuse; wings much shorter, the blade oblong, somewhat falcate; keel-petals broadly lunate; pod broadly ellipsoid, 3-3.5 cm. long, 1.75-2 cm. thick, glabrate.
Type locality: Guadelupe River, Texas. Distribution: Texas.