Triodanis perfoliata
(L.) Nieuwl. · speciesAt a glance
Sources12 archives
Databases and archives Triodanis perfoliata's data was compiled from.
WikipediaWikimedia Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility13 782 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI11 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics19 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
giftgenome & karyotype
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
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.Kew World Checklist of Selected Plant FamiliesFlora 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.Acevedo-Rodríguez, P. & Strong, M.T. (2012). Catalogue of seed plants of the West Indies. Smithsonian Contributions to Botany 98: 1–1192.Lammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1–675. The Board of Trustees of the Royal Botanic Gardens, Kew.Theiret, John (2001). "North American Wildflowers", Alfred A. Knopf Inc.Flora Bonaerense, Plantas y Hongos de la Provincia de Buenos Aires, Argentina, (Triodanis perfoliata)
No narrative description available for this taxon yet.
Size & morphology18
Life cycle & reproduction7
Diet & foraging1
Habitat & environment11
Physiology & chemistry3
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Triodanis perfoliata has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
The complete instruction manual Triodanis perfoliata carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 563×CCDB · book-ipcn66 · CCDB · book-fedorov · GIFT · GIFT (floras)
n 281×CCDB · book-ipcn65
polyploid inferred1×PloiDB · family-scale
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
Record type13 782 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions124 of 202 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Wuzhou, CN | 252 |
| Chongqing Museumlocation not on record | 156 |
| Bronx, US | 141 |
| Fort Worth, US | 128 |
| Bloomington, US | 112 |
| Madison, US | 98 |
| BAYLUlocation not on record | 98 |
| Austin, US | 82 |
| Chapel Hill, US | 79 |
| Saint Louis, US | 69 |
| Bangkok, TH | 67 |
| ASUlocation not on record | 64 |
| Williamsburg, US | 55 |
| College Park, US | 51 |
| Kochi, JP | 51 |
| Odawara, JP | 50 |
| Pullman, US | 46 |
| Mexico City, MX | 41 |
| Corvallis, US | 41 |
| Tampa, US | 41 |
| University of Stellenboschlocation not on record | 39 |
| St. Paul, US | 37 |
| US | 36 |
| Durango, MX | 34 |
| Blumenau, BR | 34 |
| Burlington, US | 31 |
| Jackson, US | 30 |
| Emporia, US | 26 |
| Ann Arbor, US | 25 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 24 |
| Flagstaff, US | 24 |
| University of New Hampshirelocation not on record | 23 |
| Lincoln, US | 21 |
| NSMKlocation not on record | 20 |
| EL PASO, US | 20 |
| Jena Microbial Resource Collectionlocation not on record | 19 |
| Columbia, US | 19 |
| Vancouver, CA | 17 |
| Riverside, US | 17 |
| Moscow, US | 17 |
| Chadron, US | 16 |
| Valdosta State Universitylocation not on record | 16 |
| Missoula, US | 16 |
| Miami, US | 15 |
| Denver, US | 15 |
| Knoxville, US | 15 |
| Allentown, US | 15 |
| Toyama, JP | 14 |
| Philadelphia, US | 14 |
| WTUlocation not on record | 14 |
| Mississippi State, US | 14 |
| National Biodiversity Institute, Costa Ricalocation not on record | 14 |
| Albuquerque, US | 14 |
| Tuscaloosa, US | 14 |
| Millersville, US | 12 |
| AUAlocation not on record | 12 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 11 |
| University of Southern Mississippilocation not on record | 11 |
| Morgantown, US | 11 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 10 |
| Spearfish, US | 10 |
| Dekalb, US | 10 |
| Nagano City, JP | 10 |
| Bozeman, US | 10 |
| Pittsburg, US | 10 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 9 |
| GB | 9 |
| Fayetteville, US | 9 |
| Phoenix, US | 9 |
| China Agricultural Universitylocation not on record | 9 |
| DOI/NPS, Greenbelt Parklocation not on record | 9 |
| Chicago, US | 8 |
| DOI/NPS, Selma to Montgomery National Historic Traillocation not on record | 8 |
| San Angelo, US | 8 |
| National Institute of Biological Resourceslocation not on record | 7 |
| Tall Timbers Research Stationlocation not on record | 7 |
| Bando, JP | 6 |
| Tomioka, JP | 6 |
| Richmond, US | 6 |
| Denton, US | 6 |
| Fullerton, US | 6 |
| J.F.Oberlin Universitylocation not on record | 6 |
| Lubbock, US | 6 |
| Tokushima, JP | 5 |
| Fukushima Universitylocation not on record | 5 |
| KURAlocation not on record | 5 |
| GAlocation not on record | 5 |
| Boise, US | 5 |
| Claremont, US | 5 |
| UTFPR-CPlocation not on record | 5 |
| DOI/NPS, Mississippi National River & Recreation Arealocation not on record | 5 |
| JP | 5 |
| Hiratsuka City Museumlocation not on record | 5 |
| Sendai, JP | 4 |
| Green Bay, US | 4 |
| Fredericksburg, US | 4 |
| James F. Matthews Center for Biodiversity Studieslocation not on record | 4 |
| Johnson City, US | 4 |
| Springfield, US | 4 |
| Fairfax, US | 4 |
| Kirksville, US | 4 |
| Mexico City, MX | 4 |
| Victoria, CA | 4 |
| New Brunswick, US | 3 |
| Macomb, US | 3 |
| University of North Carolina at Pembrokelocation not on record | 3 |
| LINUlocation not on record | 3 |
| Provo, US | 3 |
| Clemson, US | 3 |
| Aarhus, DK | 3 |
| Norfolk, US | 3 |
| Portland, US | 3 |
| Jefferson City, US | 3 |
| Western Carolina Universitylocation not on record | 3 |
| San Diego, US | 3 |
| Arcata, US | 3 |
| Kawasaki Shi Tama Ku, JP | 3 |
| Weymouth Woods Sandhills Nature Preservelocation not on record | 3 |
| New Haven, US | 3 |
| Cheney, US | 3 |
| Austin, US | 3 |
| Columbus State Universitylocation not on record | 3 |
| Universidade Federale do Rio Grande do Sullocation not on record | 3 |
| Hudson, US | 3 |
| San Isidro, AR | 3 |
| San Luis Obispo, US | 3 |
| Juriquilla, MX | 3 |
| FUVATESlocation not on record | 3 |
| San José, CR | 2 |
| Parthenon Tama History Museumlocation not on record | 2 |
| Dover, US | 2 |
| Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record | 2 |
| Keene State Universitylocation not on record | 2 |
| University of Tennessee at Chattanoogalocation not on record | 2 |
| Minia, EG | 2 |
| Caldwell, US | 2 |
| Logan, US | 2 |
| Davis, US | 2 |
| Chicago, US | 2 |
| Asheville, US | 2 |
| University of Wisconsinlocation not on record | 2 |
| Xiamen, CN | 2 |
| Museum of the Rockieslocation not on record | 2 |
| Portland, US | 2 |
| University of Alberta Museumslocation not on record | 2 |
| Moscow State Universitylocation not on record | 2 |
| McWane Science Centerlocation not on record | 2 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 2 |
| Conway, US | 2 |
| Lord Fairfax Community Collegelocation not on record | 1 |
| Beijing, CN | 1 |
| Brisbane, AU | 1 |
| Mohonk Preservelocation not on record | 1 |
| Taipei, TW | 1 |
| UFSClocation not on record | 1 |
| California State Universitylocation not on record | 1 |
| IDElocation not on record | 1 |
| Oswego, US | 1 |
| Northridge, US | 1 |
| Fujian Institute of Subtropical Botanylocation not on record | 1 |
| Universidad de Antioquia (UdeA)location not on record | 1 |
| Pacific Lutheran Universitylocation not on record | 1 |
| UTFPR-DVlocation not on record | 1 |
| Brookings, US | 1 |
| University of British Columbia, Herbariumlocation not on record | 1 |
| Texas Lutheran Universitylocation not on record | 1 |
| Smithsonian Institutionlocation not on record | 1 |
| CSULAlocation not on record | 1 |
| Canadian Department of Agriculturelocation not on record | 1 |
| Shinshu Universitylocation not on record | 1 |
| UChlocation not on record | 1 |
| Pontifícia Universidade Católica do Paranálocation not on record | 1 |
| Black Rock Forest Consortiumlocation not on record | 1 |
| KMNlocation not on record | 1 |
| Davenport, US | 1 |
| Tennessee Technological Universitylocation not on record | 1 |
| Mie Prefectural Museumlocation not on record | 1 |
| UFSMlocation not on record | 1 |
| USFS/BHSClocation not on record | 1 |
| Berlin, DE | 1 |
| Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record | 1 |
| Mount Berry, US | 1 |
| USP-IBlocation not on record | 1 |
| Tacoma, US | 1 |
| Saint John, CA | 1 |
| Córdoba, AR | 1 |
| Herbarium of South China Botanical Gardenlocation not on record | 1 |
| Toronto, CA | 1 |
| Sagamihara, JP | 1 |
| Toyota city nature sanctuarylocation not on record | 1 |
| Paris, FR | 1 |
| SEINetlocation not on record | 1 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 1 |
| Universidade Federal de Santa Catarinalocation not on record | 1 |
| Taipei, TW | 1 |
| Research Collection of B. A. Bennettlocation not on record | 1 |
| Wlocation not on record | 1 |
| Kunming, CN | 1 |
| Kagoshima, JP | 1 |
| Tempe, US | 1 |
| Durham, US | 1 |
| South Kensington, GB | 1 |
Where the DNA of Triodanis perfoliata was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.