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Clasping Venus' Looking Glass
Triodanis perfoliata
About Clasping Venus' Looking Glass (Triodanis perfoliata) 0 Nurseries Carry This Plant Triodanis perfoliata, the clasping Venus' looking-glass 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. 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 Americans. The Cherokee take a liquid compound of root for dyspepsia from overeating, and take an infusion of roots taken and use it as a bath for dyspepsia. The Meskwaki use it as an emetic to make one "sick all day long", and smoke it at ceremonies. Wikimedia Commons has media related to Triodanis perfoliata.
Plant Description
Plant Type
Plant Type
Annual herb

0.5 - 3 ft tall

Flower Color
Flower Color
Purple, Blue

Landscaping Information
Full Sun

Natural Setting
Site Type
Site Type
along rocky streambanks

Annual Precipitation: 12.7" - 41.4", Summer Precipitation: 0.17" - 2.65", Coldest Month: 39.0" - 51.8", Hottest Month: 58.2" - 75.6", Humidity: 0.47" - 24.45", Elevation: 48" - 6608"

Alternative Names
Common Names: Clasping Venus' Looking-glass

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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