Triodanis
Triodanis is a genus of flowering plants within the family Campanulaceae, native to North and South America. Venus' looking-glass is a common name for plants in this genus.
Species
Six species are accepted.- Triodanis coloradoensis 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 Nieuwl. - Slimpod Venus' looking-glass - Great Plains
- Triodanis perfoliata Nieuwl. - Clasping Venus' looking-glass - widespread across North and South America from Canada to Argentina; naturalized in China, Korea, Australia
- *Triodanis perfoliata [subsp. biflora|Triodanis perfoliata subsp. 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