Triodanis

Triodanis is a genus of flowering plants within the family Campanulaceae, native to North and South America.^[1][2][3] Venus' looking-glass is a common name for plants in this genus.^[4]

Triodanis
Triodanis perfoliata
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Campanulaceae
Subfamily:	Campanuloideae
Genus:	Triodanis Raf. (1838)
Synonyms[1]
Campylocera Nutt. (1842) Dysmicodon (Endl.) Nutt. (1842)

Species

Six species are accepted.^[5]

• 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 (Ruiz & Pav.) Lammers (synonym Triodanis biflora (Ruiz & Pav.) Greene) - 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