Astragalus sect. Pachypodes

(M. E. Jones) Barneby

Mem. New York Bot. Gard. 13: 487. 1964.

Basionym: Astragalus subg. Jones Rev. N.-Amer. Astragalus, 144. 1923
Treatment appears in FNA Volume 11.

Herbs perennial, clump-forming, caulescent; caudex aerial. Hairs basifixed. Stems several to many. Stipules distinct. Leaves odd-pinnate, short-petiolate or subsessile; leaflets 11–25(or 27). Racemes loosely flowered, flowers ascending. Calyx tubes broadly campanulate. Corollas white, faintly lavender, or lemon yellow, banner recurved through 45°, keel apex obtuse. Legumes persistent, stipitate, spreading or incurved-ascending, lunate or falcate, oblong-cylindroid, compressed laterally, sutures keeled, bilocular. Seeds 20–36.

Discussion

Species 1.

Section Pachypodes occurs in the South Coast Ranges, western Mohave Desert, and interior southern California.

Selected References

None.