Triodanis is a genus of flowering plants within the family Campanulaceae, native to North and South America.Kew World Checklist of Selected Plant SpeciesLammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1-675. The Board of Trustees of the Royal Botanic Gardens, Kew.Biota of North America Program, 2013 county distribution maps Venus' looking-glass is a common name for plants in this genus.
Species Six species are accepted. Triodanis coloradoensis (Buckley) McVaugh - Colorado Venus' looking-glass - endemic to Texas despite the name Triodanis holzingeri McVaugh - Holzinger's Venus' looking-glass - Great Plains plus Arizona and Tennessee Triodanis lamprosperma McVaugh - Prairie Venus' looking-glass - southern Great Plains Triodanis leptocarpa (Nutt.) Nieuwl. - Slimpod Venus' looking-glass - Great Plains Triodanis perfoliata (L.) Nieuwl. - Clasping Venus' looking-glass - widespread across North and South America from Canada to Argentina; naturalized in China, Korea, Australia Triodanis perfoliata subsp. biflora (synonym Triodanis biflora ) - small Venus' looking-glass - United States and northern Mexico; Colombia to southern Argentina Triodanis perfoliata subsp. perfoliata – Canada to Guatemala Triodanis texana McVaugh - Texas Venus' looking-glass - endemic to Texas
References
External links Triodanis - Ecoport