Ambrosia trifida
speciesAt a glance
Sources12 archives
Databases and archives Ambrosia trifida's data was compiled from.
WikipediaWikimedia Foundation9 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility45 624 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI18 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics25 specimens↗
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Ambrosia trifida, the giant ragweed, is a species of flowering plant in the family Asteraceae. It is native to North America, where it is widespread in Canada, the United States, and northern Mexico.
No narrative description available for this taxon yet.
Size & morphology9
Life cycle & reproduction13
Diet & foraging2
Habitat & environment9
Physiology & chemistry5
Other traits1
Compounds documented for Ambrosia trifida across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds21 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1R,3aR,4R,8aS)-8a-hydroxy-3a,6-dimethyl-1-(propan-2-yl)-1,2,3,3a,4,7,8,8a-octahydroazulen-4-yl (2Z)-2-methylbut-2-enoate | present | LOTUS | |
| (2R)-2-[2-(6-penta-1,3-diynyldithiin-3-yl)ethynyl]oxirane | present | LOTUS | |
| (3aS,6S,6aS,7S,9aR,9bR)-7-hydroxy-6,9a-dimethyl-3-methylidene-3a,4,5,6,6a,7,8,9b-octahydroazuleno[8,7-b]furan-2,9-dione | present | LOTUS | |
| (R)-beta-bisabolene | present | LOTUS | |
| 2,3-Dimethoxy-p-benzoquinone | present | LOTUS | |
| 2-(But-3-en-1-ynyl)-5-(penta-1,3-diynyl)-thiophene | present | LOTUS | |
| 3-(3-Buten-1-yn-1-yl)-6-(1,3-pentadiyn-1-yl)-1,2-dithiin | present | LOTUS | |
| 3-(5-Hexene-1,3-diyn-1-yl)-6-(1-propyn-1-yl)-1,2-dithiin | present | LOTUS | |
| 5,7-Dihydroxy-2-(4-hydroxyphenyl)-6,8-dimethoxy-4H-1-benzopyran-4-one | present | LOTUS | |
| [(1R,3aR,4R,8aS)-8a-hydroxy-3a,6-dimethyl-1-propan-2-yl-1,2,3,4,7,8-hexahydroazulen-4-yl] (2R)-2-methylbutanoate | 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 Ambrosia trifida 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 Ambrosia trifida 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 2410×CCDB · nw-europe-fl · CCDB · book-ipcn65 · CCDB · ipcn-api-dl +2
2n 301×CCDB · book-atlas-flowering-plants
n 124×CCDB · ita-fl · CCDB · ipcn-api-dl · CCDB · Cave1962
diploid1×GoaT · Kew Plant DNA C-values Database
diploid inferred1×PloiDB · family-scale
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
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 type45 624 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 institutions155 of 263 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 | 345 |
| Wuzhou, CN | 310 |
| Chongqing Museumlocation not on record | 142 |
| Odawara, JP | 137 |
| St. Paul, US | 131 |
| Bronx, US | 128 |
| Bloomington, US | 108 |
| Nagano City, JP | 90 |
| Saint Louis, US | 77 |
| Moscow State Universitylocation not on record | 64 |
| Québec, CA | 60 |
| Fort Worth, US | 58 |
| Austin, US | 55 |
| LDlocation not on record | 44 |
| Jena Microbial Resource Collectionlocation not on record | 44 |
| Chiba, JP | 41 |
| University of Stellenboschlocation not on record | 40 |
| Chadron, US | 39 |
| Denver, US | 38 |
| Ann Arbor, US | 38 |
| Bern, CH | 37 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 37 |
| Olocation not on record | 37 |
| Bando, JP | 35 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 35 |
| Chapel Hill, US | 33 |
| MeiseBGlocation not on record | 31 |
| Pittsburg, US | 30 |
| ASUlocation not on record | 29 |
| New Haven, US | 27 |
| WINlocation not on record | 26 |
| Tsukuba, JP | 26 |
| Bangkok, TH | 25 |
| Oskarshamn, SE | 24 |
| Tomioka, JP | 24 |
| Spearfish, US | 23 |
| Montréal, CA | 23 |
| University of Wisconsinlocation not on record | 23 |
| Henderson State Universitylocation not on record | 22 |
| Madison, US | 22 |
| Flagstaff, US | 22 |
| BIO-UNIPIlocation not on record | 21 |
| Sanda, JP | 20 |
| Williamsburg, US | 20 |
| Jackson, US | 19 |
| College Park, US | 19 |
| DOI/NPS, Greenbelt Parklocation not on record | 18 |
| Trondheim, NO | 18 |
| DMZ botanic gardenlocation not on record | 17 |
| Hiratsuka City Museumlocation not on record | 17 |
| Université Lavallocation not on record | 16 |
| Fayetteville, US | 16 |
| Bozeman, US | 16 |
| National Institute of Biological Resourceslocation not on record | 15 |
| South Kensington, GB | 14 |
| University of New Hampshirelocation not on record | 14 |
| Emporia, US | 14 |
| Tokushima, JP | 14 |
| Allentown, US | 14 |
| Phoenix, US | 14 |
| Fukushima Universitylocation not on record | 13 |
| Toyama, JP | 13 |
| Oulu, FI | 13 |
| US | 13 |
| Turku, FI | 13 |
| Denton, US | 12 |
| Nagatoro-machi, Chichibu-gun, JP | 12 |
| Kochi, JP | 11 |
| Bergen, NO | 11 |
| Davenport, US | 11 |
| EL PASO, US | 11 |
| Lincoln, US | 11 |
| Sagamihara, JP | 11 |
| Otaru, JP | 11 |
| Riverside, US | 10 |
| Tuscaloosa, US | 10 |
| Valdosta State Universitylocation not on record | 10 |
| Canadian Department of Agriculturelocation not on record | 9 |
| Texas Lutheran Universitylocation not on record | 9 |
| Lubbock, US | 9 |
| Provo, US | 9 |
| Acadia Universitylocation not on record | 9 |
| McWane Science Centerlocation not on record | 8 |
| Beijing, CN | 8 |
| Brussel, BE | 8 |
| Kirksville, US | 8 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 8 |
| Akita Prefectural Museumlocation not on record | 8 |
| San Angelo, US | 8 |
| Missoula, US | 8 |
| DOI/NPS, Mississippi National River & Recreation Arealocation not on record | 8 |
| GB | 7 |
| Sugadaira Research Station, Mountain Science Center, University of Tsukubalocation not on record | 7 |
| Mlocation not on record | 7 |
| JP | 7 |
| Hermosillo, MX | 7 |
| Toronto, CA | 7 |
| Osaka, JP | 7 |
| Springfield, US | 7 |
| Green Bay, US | 7 |
| Knoxville, US | 7 |
| Whitewater, US | 6 |
| Tampa, US | 6 |
| Saint John, CA | 6 |
| Salzburg, AT | 6 |
| Albuquerque, US | 6 |
| Nijmegen, NL | 6 |
| Wlocation not on record | 6 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 6 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 6 |
| University of Guelph, OAC Herbariumlocation not on record | 5 |
| Pullman, US | 5 |
| Chicago, US | 5 |
| Ernst-Moritz-Arndt-Universitat Greifswaldlocation not on record | 5 |
| University of Alberta Museumslocation not on record | 5 |
| MAlocation not on record | 5 |
| Norfolk, US | 5 |
| Mississippi State, US | 5 |
| Museum of the Rockieslocation not on record | 5 |
| AUAlocation not on record | 5 |
| BFLlocation not on record | 5 |
| Appalachian State Universitylocation not on record | 5 |
| GAlocation not on record | 5 |
| Philadelphia, US | 5 |
| Waverly, US | 5 |
| Mexico City, MX | 5 |
| Vitoria, ES | 5 |
| Staten Island, US | 5 |
| University of Tennessee at Chattanoogalocation not on record | 5 |
| Millersville, US | 5 |
| Baltimore, US | 4 |
| WTUlocation not on record | 4 |
| San Luis Obispo, US | 4 |
| Kuopio, FI | 4 |
| Miami, US | 4 |
| Harrisonburg, US | 4 |
| Dekalb, US | 4 |
| Dover, US | 4 |
| Parthenon Tama History Museumlocation not on record | 4 |
| Macomb, US | 4 |
| Natural History Museum Rotterdamlocation not on record | 4 |
| Iwate Prefectural Museumlocation not on record | 4 |
| Turlock, US | 4 |
| Uppsala, SE | 4 |
| Jefferson City, US | 4 |
| Western Carolina Universitylocation not on record | 4 |
| Sendai, JP | 4 |
| Corvallis, US | 4 |
| Montréal, CA | 4 |
| KOMlocation not on record | 3 |
| New Brunswick, US | 3 |
| Trois-Rivières, CA | 3 |
| Tall Timbers Research Stationlocation not on record | 3 |
| Keene State Universitylocation not on record | 3 |
| Hudson, US | 3 |
| Finnish Museum of Natural History, Botanical Museumlocation not on record | 3 |
| DOI/NPS, Selma to Montgomery National Historic Traillocation not on record | 3 |
| BRNUlocation not on record | 3 |
| Washington, US | 3 |
| Görlitz, DE | 3 |
| Clemson, US | 3 |
| Columbia, US | 3 |
| University of Southern Mississippilocation not on record | 3 |
| STNFlocation not on record | 3 |
| US | 3 |
| Logan, US | 3 |
| Burlington, US | 3 |
| KNAMlocation not on record | 3 |
| Claremont, US | 3 |
| Durango, MX | 3 |
| Stephenville, US | 3 |
| Chicago, US | 3 |
| Royal Botanical Gardenslocation not on record | 3 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 3 |
| Universidad del Pais Vasco (UPV/EHU)location not on record | 2 |
| San Diego, US | 2 |
| Vancouver, CA | 2 |
| Austin, US | 2 |
| Little Rock, US | 2 |
| San Sebastián, ES | 2 |
| Helsinki, FI | 2 |
| John May Museum of Natural Historylocation not on record | 2 |
| Pomona Collegelocation not on record | 2 |
| DBF-NHMDlocation not on record | 2 |
| Fairfax, US | 2 |
| Fargo, US | 2 |
| Richmond, US | 2 |
| Asheville, US | 2 |
| Stockholm, SE | 2 |
| Torreón, MX | 2 |
| Kawasaki Shi Tama Ku, JP | 2 |
| SIHUlocation not on record | 2 |
| Conway, US | 2 |
| CASlocation not on record | 2 |
| Barcelona, ES | 2 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 2 |
| Moscow, US | 2 |
| Tula State Lev Tolstoy Pedagogical Universitylocation not on record | 2 |
| Northridge, US | 2 |
| Paris, FR | 2 |
| València, ES | 2 |
| KR | 2 |
| US | 2 |
| Columbus State Universitylocation not on record | 2 |
| Uniwersytet Warszawskilocation not on record | 2 |
| Edmonton, CA | 2 |
| The University of Arizonalocation not on record | 2 |
| J.F.Oberlin Universitylocation not on record | 2 |
| Brock University (BU)location not on record | 1 |
| Decorah, US | 1 |
| SLU Artdatabankenlocation not on record | 1 |
| Victoria, CA | 1 |
| Mohonk Preservelocation not on record | 1 |
| Weber State Universitylocation not on record | 1 |
| Ishikawa Museum of Natural Historylocation not on record | 1 |
| DNSMlocation not on record | 1 |
| Beijing Normal Universitylocation not on record | 1 |
| Conway, US | 1 |
| Nishihara, JP | 1 |
| KURAlocation not on record | 1 |
| Tulane Universitylocation not on record | 1 |
| xMDC-Clintonlocation not on record | 1 |
| Laboratory of Palaeontologylocation not on record | 1 |
| Pondicherry, IN | 1 |
| Long Beach, US | 1 |
| China Agricultural Universitylocation not on record | 1 |
| Severin-McDaniel Insect Collectionlocation not on record | 1 |
| Tennessee Technological Universitylocation not on record | 1 |
| KMNlocation not on record | 1 |
| KIWElocation not on record | 1 |
| NMBU:MINAlocation not on record | 1 |
| CJBGlocation not on record | 1 |
| Jardim Botânico do Rio de Janeirolocation not on record | 1 |
| Zürich, CH | 1 |
| Nishihara, JP | 1 |
| Granada, ES | 1 |
| GZUlocation not on record | 1 |
| Boise, US | 1 |
| LINUlocation not on record | 1 |
| Caldwell, US | 1 |
| Zapopan, MX | 1 |
| Uniwersytet Śląski w Katowicachlocation not on record | 1 |
| TUR-Alocation not on record | 1 |
| Whitehorse, CA | 1 |
| Museum Of Natural And Environmental History, Shizuokalocation not on record | 1 |
| Podgorica, ME | 1 |
| Maryland Department of Natural Resourceslocation not on record | 1 |
| BAYLUlocation not on record | 1 |
| Salamanca, ES | 1 |
| Entomological Society of Latvialocation not on record | 1 |
| Museo Achille Folettolocation not on record | 1 |
| Research Collection of B. A. Bennettlocation not on record | 1 |
| Universität Erlangen-Nürnberglocation not on record | 1 |
| Johnson City, US | 1 |
| Minia, EG | 1 |
| IDElocation not on record | 1 |
| Adam Mickiewicz University in Poznańlocation not on record | 1 |
| Hamilton, US | 1 |
| Istituto Agrario Castelnuovolocation not on record | 1 |
| College of the Atlantic, Museumlocation not on record | 1 |
| Omachi Alpine Museumlocation not on record | 1 |
| Taipei, TW | 1 |
| DULlocation not on record | 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 Ambrosia trifida 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.