Arisaema dracontium
(L.) Schott · speciesAt a glance
Sources12 archives
Databases and archives Arisaema dracontium's data was compiled from.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility8 299 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics7 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & 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.
Arisaema dracontium, the dragon-root or green dragon, is a herbaceous perennial plant in the genus Arisaema and the family Araceae. It is native to North America from Quebec through Minnesota south through Florida and Texas, where it is found growing in damp woods. It has also been reported from northeastern Mexico (Nuevo León + Veracruz) Plants grow 20 – tall when in bloom and after flowering reach 100 cm, and each grows from a corm.New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada, p. 367. Normally, a plant produces one leaf with a long petiole, its leaf is composed of 7 to 13 leaflets, with its central leaflet being the largest one and with leaflets becoming smaller as they are produced distally, the leaflets are held out horizontally over the plant. During flowering in spring, a single slender, green spathe 3 - long is produced; it covers a tapering, long thin spadix. The tail-like spadix grows out around the top of its spathe. After flowering, up to 150 berries are produced in a club-shaped column. In late summer, the green berries turn orange-red, each berry produces 1 to 3 seeds. It is listed as a vulnerable species in Canada.
No narrative description available for this taxon yet.
Size & morphology3
Life cycle & reproduction5
Diet & foraging1
Habitat & environment6
Physiology & chemistry1
Compounds documented for Arisaema dracontium across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile1 class
Documented compounds2 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| 13-Phenyltridecanoic acid | present | LOTUS | |
| 15-Phenylpentadecanoic acid | present | LOTUS |
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 Arisaema dracontium 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 Arisaema dracontium 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.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
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 · ipcn-api-dl · CCDB · araceae · CCDB · book-atlas-flowering-plants
polyploid inferred1×PloiDB · genus-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 type8 299 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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions79 of 122 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Philadelphia, US | 158 |
| Chongqing Museumlocation not on record | 105 |
| Chapel Hill, US | 104 |
| Madison, US | 99 |
| Bloomington, US | 91 |
| Chicago, US | 78 |
| Wuzhou, CN | 65 |
| Fort Worth, US | 58 |
| International Salmonella Centre (W.H.O.)location not on record | 46 |
| Austin, US | 45 |
| Jackson, US | 40 |
| Ann Arbor, US | 38 |
| Saint Louis, US | 38 |
| Jena Microbial Resource Collectionlocation not on record | 34 |
| Bronx, US | 33 |
| Tampa, US | 31 |
| Bangkok, TH | 24 |
| Allentown, US | 24 |
| University of Stellenboschlocation not on record | 22 |
| New Haven, US | 22 |
| Tuscaloosa, US | 21 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 19 |
| Fayetteville, US | 18 |
| Longwood Universitylocation not on record | 17 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 16 |
| Durango, MX | 14 |
| Mississippi State, US | 14 |
| Montréal, CA | 14 |
| University of Wisconsinlocation not on record | 13 |
| Burlington, US | 13 |
| DOI/NPS, Mississippi National River & Recreation Arealocation not on record | 13 |
| Pittsburg, US | 12 |
| College Park, US | 12 |
| Millersville, US | 11 |
| Mexico City, MX | 11 |
| Juriquilla, MX | 10 |
| Clemson, US | 10 |
| US | 10 |
| Williamsburg, US | 10 |
| Ciudad de México, MX | 9 |
| Tall Timbers Research Stationlocation not on record | 9 |
| Museum of the Rockieslocation not on record | 9 |
| Columbia, US | 8 |
| Valdosta State Universitylocation not on record | 7 |
| Dekalb, US | 7 |
| Miami, US | 6 |
| Mexico City, MX | 6 |
| Henderson State Universitylocation not on record | 6 |
| Conway, US | 6 |
| University of New Hampshirelocation not on record | 6 |
| Springfield, US | 6 |
| DOI/NPS, Selma to Montgomery National Historic Traillocation not on record | 6 |
| Giardini Botanici Hanburylocation not on record | 5 |
| New Brunswick, US | 5 |
| James F. Matthews Center for Biodiversity Studieslocation not on record | 5 |
| Edmonton, CA | 5 |
| Québec, CA | 5 |
| EL PASO, US | 5 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 4 |
| Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record | 4 |
| Knoxville, US | 4 |
| McWane Science Centerlocation not on record | 4 |
| University of Tennessee at Chattanoogalocation not on record | 4 |
| AUAlocation not on record | 4 |
| Chicago, US | 4 |
| GAlocation not on record | 4 |
| Green Bay, US | 4 |
| Lincoln, US | 4 |
| University of Southern Mississippilocation not on record | 4 |
| Auckland, NZ | 4 |
| Conway, US | 3 |
| GB | 3 |
| University of Wisconsinlocation not on record | 3 |
| Davenport, US | 3 |
| Karlsruhe, DE | 3 |
| CASlocation not on record | 3 |
| Morgantown, US | 3 |
| DOI/NPS, Greenbelt Parklocation not on record | 3 |
| Denton, US | 3 |
| Austin, US | 3 |
| Tennessee Technological Universitylocation not on record | 2 |
| Logan, US | 2 |
| Maryland Department of Natural Resourceslocation not on record | 2 |
| Macomb, US | 2 |
| Canadian Department of Agriculturelocation not on record | 2 |
| Richmond, US | 2 |
| Flagstaff, US | 2 |
| San Angelo, US | 2 |
| Blacksburg, US | 2 |
| China Agricultural Universitylocation not on record | 2 |
| BAYLUlocation not on record | 2 |
| Little Rock, US | 2 |
| Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record | 2 |
| Chadron, US | 2 |
| Jefferson City, US | 2 |
| Université Lavallocation not on record | 2 |
| Kirksville, US | 2 |
| Kew, GB | 1 |
| Stephenville, US | 1 |
| Western Carolina Universitylocation not on record | 1 |
| Universite de Montreal, L'Herbier Marie-Victorinlocation not on record | 1 |
| LINUlocation not on record | 1 |
| Moscow, US | 1 |
| Denver, US | 1 |
| ASUlocation not on record | 1 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 1 |
| Philadelphia, US | 1 |
| Staten Island, US | 1 |
| Dover, US | 1 |
| Turlock, US | 1 |
| Pullman, US | 1 |
| Northridge, US | 1 |
| Jurica-Suchy Nature Museumlocation not on record | 1 |
| Paris, FR | 1 |
| Riverside, US | 1 |
| Tempe, US | 1 |
| US | 1 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 1 |
| Acadia Universitylocation not on record | 1 |
| Lubbock, US | 1 |
| University of Guelph, OAC Herbariumlocation not on record | 1 |
| Santa Barbara, US | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Arisaema dracontium 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.