*Verbena incompta P.W. Michael. Purpletop Vervain. Phen: May-Oct. Hab: Roadsides, disturbed areas, old fields. Dist: Native of South America.

Origin/Endemic status: South America

Synonymy: = Ar, Fl6, K4, Nesom (2010b), Nesom (2010c), Verloove (2011); = n/a – Pa; = Verbena litoralis Kunth var. brevibracteata (Kuntze) N.O'Leary – O’Leary, Múlgara, & Morrone (2007); < Verbena bonariensis L. – C, F, G, GW2, RAB, S, Tx; > Verbena bonariensis var. bonariensis – K1; < Verbena incompta P.W.Michael – WH3; > Verbena litoralis Kunth var. brevibracteata (Kuntze) N.O'Leary – K1

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