Flower profile
Clasping Venus's looking glass
Triodanis perfoliata
Clasping Venus's looking glass is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Delaware it's most often seen in bloom in May–June.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Delaware
Quick look
Triodanis perfoliata, the clasping Venus' looking-glass or clasping bellflower, is an annual 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.
- It belongs to the Campanulaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a annual life cycle. USDA PLANTS
- USDA PLANTS lists it as native in the lower 48 states and records it in 47 states. USDA PLANTS
- NatureServe lists it as native to Delaware. NatureServe
- In Delaware, most iNaturalist sightings of it in flower come in May–June. iNaturalist
- iNaturalist has 195 research-grade sightings of it in Delaware, ranking #71 among the 110 flowers on our Delaware list. iNaturalist
Clasping Venus's looking glass gift ideas
Handmade clasping venus's looking glass gifts from independent makers.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Clasping Venus's looking glass art print
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Clasping Venus's looking glass greeting card
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Clasping Venus's looking glass mug
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Clasping Venus's looking glass earrings
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Clasping Venus's looking glass embroidery pattern
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Clasping Venus's looking glass sticker
When does it bloom?
In Delaware, most flowering sightings come in May–June.
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- G5 Secure worldwide. NatureServe
- Delaware
- Not listed Not on Rare and Uncommon Plants of Delaware (DNREC, 2024; informational, Delaware has no state plant-protection list). NatureServe: S5, secure in Delaware. DE rare plants 2024
- Rare elsewhere
- No other U.S. state ranks it S1, S2, SH or SX.
Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.
Can you eat it?
None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.
It isn't on the ASPCA plant list.
🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.
Where does it grow?
USDA PLANTS records clasping Venus's looking glass in 47 states plus Washington, D.C.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming; District of Columbia.
Delaware counties with USDA records: New Castle.
More Delaware flowers
Sources
- USDA, NRCS. PLANTS Database, profile TRPE4.
- iNaturalist, Triodanis perfoliata: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Triodanis perfoliata (lead quoted under CC BY-SA 4.0).
- Delaware: Rare and Uncommon Plants of Delaware (DNREC, 2024; informational, Delaware has no state plant-protection list).
- Delaware: Delaware Invasive Plant List (3 Del. Admin. Code § 806-3.0).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Triodanis perfoliata (global and state ranks).
- Edibility and toxicity: no source found (marked "not well documented").
- Photo: Michelle W. （鍾偉瑋） via iNaturalist · CC BY 4.0 · resized.