Astragalus nuttallianus A.P. de Candolle var. nuttallianus . Nuttall’s Milkvetch. Phen: Apr-Jun. Hab: Blackland prairies. Dist: W. AR, s. KS, and n. TX south to sw. LA, s. TX, and Mexico; disjunct in w. AL (Keener 2013).
Origin/Endemic status: Native
Synonymy: = Ar, K3, K4, NcTx, SE3, Tx, Barneby (1964), Isely (1998); < Astragalus nuttallianus DC. – Mex
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