*Urena Linnaeus. Subfamily: Malvoideae. Caesarweed.
A genus of about 6 species, of tropical and subtropical regions. Perhaps better included in a broadly circumscribed Hibiscus (Pfeil & Crisp 2005).
Ref: Bayer & Kubitzki In Kubitzki & Bayer (2003); Hill (2015g) In Flora of North America Editorial Committee (2015). Show full citations.
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