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Triodanis coloradoensis (Colorado venus' looking-glass)
Schwartzman, Steven

Triodanis coloradoensis

Triodanis coloradoensis (Buckley) McVaugh

Colorado Venus' Looking-glass, Western Venus' Looking Glass

Campanulaceae (Bellflower Family)


USDA Symbol: TRCO5

USDA Native Status: L48 (N)


From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Elliptic , Oblanceolate
Leaf Pubescence: Glabrous
Leaf Margin: Dentate
Inflorescence: Axillary
Fruit Type: Capsule
Size Notes: Up to about 3 feet tall, usually much shorter.
Flower: Petals 5
Fruit: Pores on capsules open from apex toward the base.

Bloom Information

Bloom Color: White , Blue , Violet
Bloom Time: Apr , May , Jun


Native Distribution: Edwards Plateau of Texas & South Texas Plains, endemic.
Native Habitat: Dry rocky hillsides and bluffs, among shrubs, limestone ledges, gravel bars and floodplains, and in rich woods


Attracts: Butterflies

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Lady Bird Johnson Wildflower Center - Austin, TX
Brackenridge Field Laboratory - Austin, TX
Patsy Glenn Refuge, c/o Wimberley Birding Society - Wimberley, TX

Herbarium Specimen(s)

NPSOT 0598 Collected May 13, 1992 in Medina County by Harry Cliffe
NPSOT 0221 Collected May 14, 1992 in Comal County by Mary Beth White

2 specimen(s) available in the Digital Herbarium


Bibref 293 - Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. Johnston
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.

Search More Titles in Bibliography

Web Reference

Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Triodanis coloradoensis in USDA Plants
FNA: Find Triodanis coloradoensis in the Flora of North America (if available)
Google: Search Google for Triodanis coloradoensis


Record Modified: 2023-03-01
Research By: TWC Staff

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