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Dick Culbert   cc-by

Verbena rigida (Tuberous Vervain) is a species of perennial herb in the family Verbenaceae. It has a self-supporting growth form. It is native to Bolivia, Paraguay, Chile, Brazil, Argentina, Venezuela, Uruguay, Santa Catarina, Cerrado, Rio Grande do Sul, Paraná, Mata Atlântica, Minas Gerais, and São Paulo. Tuberous Vervain has simple, broad leaves. It is a photoautotroph.

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EOL has data for 15 attributes, including:

Known occurrences, collected specimens and observations of tuberous vervain. View this species on GBIF