Astragalus candidissimus Ledeb.

Phaca candidissima Benth. Bot. Voy. Sulph. 13. 1844
Astragalus candidissimus S. Wats. Bibl. Ind. 191. 1878. Not A. candidissimus Ledeb. 1829.
Astragalus Magdalenae Greene, Pittonia 1: 162. 1888.
Tragacantha californica Kuntze, Rev. Gen. 940. 1891.
Astragalus Crotalariac Magdalenae M. E. Jones. Contr. W. Bot. 10: 59. 1902.
Perennial, somewhat shrubby below; stem decumbent, 5-8 dm. long, white-silky with appressed hairs; leaves 4-6 cm. long; stipules broadly deltoid, 1-5 mm. long, sericeous; leaflets 13-19, obovate or cuneate, rounded to retuse at the apex, 5-10 mm. long, 3-8 mm. wide, silvery silky-strigose on both sides; peduncles 5-10 cm. long; racemes rather lax, 3-4 cm. long; bracts subulate, 1-2 mm. long; calyx silvery', 3-4 mm. long, the lobes subulate, about 1 mm. long; corolla purple, about 1 cm. long; banner obovate, gradually tapering below; wings somewhat shorter, the blade lunate, fully as long as the claw, with an acutish basal auricle; keel-petals more curved and broader, rounded at the apex; pod sessile, canescent-strigose, ovoid-clliptic, 2-2.5 cm. long, about 12 mm. wide.
Type locality: Bay of Magdalena, Lower California. Distribution: Type locality and vicinity.