Verbena rigida Sprengel. Phen: Late Mar-Jul (-Oct). Hab: Prairies, pastures, roadsides, disturbed areas. Dist: Native of South America, distributed as an introduction from OK, CO, and AZ south to c. and s. TX and Mexico.
Origin/Endemic status: South America
Syn: = Ar, Fl6, K1, K3, K4, Meso4.2, NcTx, S, Tx, WH3, Nesom (2010b), O’Leary, Múlgara, & Morrone (2007)