Tinantia
Tinantia is a genus of plants in the Commelinaceae, first described in 1839. They are commonly called widow's tears or false dayflowers due to their resemblance of the closely related true dayflowers of the genus Commelina. Tinantia is native to North and South America from Texas + Hispaniola to Argentina, with a center of diversity from Mexico to Nicaragua. Tinantia pringlei, an alpine native of Mexico, is grown as an ornamental in temperate areas and is also a common greenhouse weed.
The genus was named in honour of François Tinant, a Luxembourger forester.
; SpeciesTinantia anomala C.B.Clarke - Texas, DurangoTinantia caribaea Urb. - Lesser Antilles, Trinidad & Tobago, ColombiaTinantia erecta Fenzl - widespread from central Mexico to Argentina; naturalized in Azores, Madeira, Java, Angola, northern IndiaTinantia glabra Rohweder - southern Mexico, Costa Rica, El Salvador, Guatemala, Venezuela Tinantia leiocalyx C.B.Clarke ex J.D.Sm. - central + southern Mexico, Central America, Colombia, VenezuelaTinantia longipedunculata Standl. & Steyerm. - central + southern Mexico, Central AmericaTinantia macrophylla S.Wats. - Chihuahua, Sonora, Sinaloa, Durango, JaliscoTinantia parviflora Rohweder - central + southern Mexico, Central America, ColombiaTinantia pringlei Rohweder - Tamaulipas, Nuevo LeónTinantia sprucei C.B.Clarke - Trinidad & Tobago, Venezuela, BrazilTinantia standleyi Steyerm. - central + southern Mexico, Central America, Colombia, Ecuador, Peru, southern BrazilTinantia umbellata Urb. - Guyana, VenezuelaTinantia violacea Rohweder - southern Mexico, Central America