Triodanis perfoliata

Triodanis perfoliata, the clasping Venus' looking-glass[2] or clasping bellflower, is a flowering plant belonging to the family Campanulaceae. It is an annual herb native to North and South America, the natural range extending from Canada to Argentina. It is also naturalized in China, Korea and Australia.[1][3][4][5][6][7]

Triodanis perfoliata
Specularia perfoliata 3.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Campanulaceae
Genus: Triodanis
T. perfoliata
Binomial name
Triodanis perfoliata
  • Campanula perfoliata L.
  • Legousia perfoliata (L.) Britton
  • Prismatocarpus perfoliatus (L.) Sweet
  • Pentagonia perfoliata (L.) Kuntze
  • Dysmicodon perfoliatum (L.) Nutt
  • Specularia perfoliata (L.) A.DC.


The flowers are wheel-shaped or bell-shaped and violet blue. They have 5-lobed corollas and are radially symmetrical. The leaves are 1/4–1" wide, are scallop-edged and shell-shaped. The plant is 6–18" high and flowers from May to August. It produces a small, many seeded capsule for fruit.

Uses among Native AmericansEdit

The Cherokee make a liquid compound of roots infused into a bath for dyspepsia(indigestion).[8]

The Meskwaki use it as an emetic to make one "sick all day long",[9] and smoke it at ceremonies.[10]


  1. ^ a b Kew World Checklist of Selected Plant Families
  2. ^ USDA, NRCS (n.d.). "Triodanis perfoliata". The PLANTS Database ( Greensboro, North Carolina: National Plant Data Team. Retrieved 15 December 2015.
  3. ^ Flora of China v 19 p 552, 穿叶异檐花 chuan ye yi yan hua, Triodanis perfoliata (Linnaeus) Nieuwland, Amer. Midl. Naturalist. 3: 192. 1914.
  4. ^ Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies. Smithsonian Contributions to Botany 98: 1–1192.
  5. ^ Lammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1–675. The Board of Trustees of the Royal Botanic Gardens, Kew.
  6. ^ Theiret, John (2001). "North American Wildflowers", Alfred A. Knopf Inc.
  7. ^ Flora Bonaerense, Plantas y Hongos de la Provincia de Buenos Aires, Argentina, (Triodanis perfoliata)
  8. ^ Taylor, Linda Averill 1940 Plants Used As Curatives by Certain Southeastern Tribes. Cambridge, MA. Botanical Museum of Harvard University (p. 60)
  9. ^ Smith, Huron H. 1928 Ethnobotany of the Meskwaki Indians. Bulletin of the Public Museum of the City of Milwaukee 4:175–326 (p. 206)
  10. ^ Smith, Huron H. 1928 Ethnobotany of the Meskwaki Indians. Bulletin of the Public Museum of the City of Milwaukee 4:175–326 (p. 272)

External linksEdit