Cyrtacanthus corymbosus Echinacanthus dichotomus Ruellia amoena Nees Ruellia graecizans Backer Ruellia longifolia Ruellia serratitheca Ruellia ventricosa Stephanophysum brevifolium Stephanophysum longifolium Stephanophysum macrandrum Stephanophysum ventricosum Ruellia brevifolia, the tropical wild petunia[1] or red Christmas pride, is an ornamental plant in the family Acanthaceae.

It is native to South America, from Colombia to southern Brazil and northern Argentina.

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