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 include:
Triodanis biflora (Ruiz & Pav.) Greene - small Venus' looking-glass - widespread across North America
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 ...