E-Flora BC: Electronic Atlas of the Flora of British Columbia

Triodanis perfoliata (L.) Nieuwl. subsp. perfoliata
Venus' looking-glass
Campanulaceae (Bellflower family)

Introduction to Vascular Plants

Distribution of Triodanis perfoliata subsp. perfoliata
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Species Information

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Illustration Source: The Illustrated Flora of British Columbia

General:
Annual herb from a taproot; stems simple or occaÃ¡sionally few-branched, erect, 10-60 cm tall, spreading short-hairy to bristly-hairy.

Leaves:
Basal leaves lacking; stem leaves alternate, stalkless, heart-shaped or rounded, 0.5-3 cm long, clasping, palmately nerved, lowermost narrower with short stalks.

Flowers:
Inflorescence of false spikes borne in the axils of the middle and upper leaves; corollas deep purple to pale lavender, 8-13 mm long, 5-lobed, lobes longer than the tube.

Fruits:
Capsules, oblong or narrowly egg-shaped, opening above the middle.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry grasslands, rocky slopes, open forests and disturbed areas in the lowland and lower montane zones; infrequent in S BC; E to PQ and S to FL, TX, NM and CA.

Source: The Illustrated Flora of British Columbia

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Native	S5	Yellow	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Synonyms and Alternate Names

Triodanis perfoliata var. perfoliata

Taxonomic and Nomenclatural Links

Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-07-27 1:19:01 PM ]

Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.