Ruellia Linnaeus. Wild-petunia.
A genus of about ca. 300 species, of the tropics and temperate North America (E. Tripp, pers. comm., 2009).
Ref: Daniel (2013); Ezcurra & Daniel (2007); Fernald (1945); Long (1970); Tripp et al. (2009); Turner (1991); Ward (2007c); Wasshausen (1998). Show full citations.
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