Verbena rigida (Tuberous Vervain) is a species of perennial herb in the family Verbenaceae. They have a self-supporting growth form. They are native to SãO Paulo, Chile, Paraguay, Brazil, Bolivia, Uruguay, Paraná, Minas Gerais, Santa Catarina, Rio Grande Do Sul, Venezuela, Cerrado, Argentina, and Mata AtlâNtica. They have simple, broad leaves. Flowers are visited by Polites peckius and Vanessa cardui.
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