Vicia ludoviciana Nuttall var. laxiflora Shinners. Blackland Vetch. Phen: (Late Feb-) Mar-Apr (-early May); Apr-May. Hab: Prairies, woodlands, rock outcrops. Dist: S. OK south to c,. TX, s. NM, and Mexico.
Origin/Endemic status: Native
Synonymy: = GrPl, Tx; = Vicia ludoviciana Nutt. ssp. ludoviciana (race 5) – Lassetter (1984); = Vicia ludoviciana Nutt. ssp. ludoviciana (race 5, laxiflora) – Isely (1998); < Vicia ludoviciana Nutt. – Mex; < Vicia ludoviciana Nutt. ssp. ludoviciana – K1, K3, K4, SE3
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