Elodea nuttallii
(Planch.) H.St.John · speciesAt a glance
Sources13 archives
Databases and archives Elodea nuttallii's data was compiled from.
WikipediaWikimedia Foundation11 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility112 282 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI15 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics24 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Female flower of Elodea nuttallii Elodea nuttallii is a species of waterweed known by the common name western waterweed or Nuttall's waterweed. This is a perennial aquatic plant which is native to North America where it grows submersed in lakes, rivers, and other shallow water bodies. It is also found in Eurasia, where it is commonly weedy; it is not known as a weed species in its native range. It is sometimes used as an aquarium plant.
No narrative description available for this taxon yet.
Size & morphology7
Life cycle & reproduction12
Diet & foraging2
Habitat & environment7
Physiology & chemistry7
Other traits1
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 Elodea nuttallii 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 Elodea nuttallii 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 485×GoaT · DTOL Flowering Plants Estimates Kew · CCDB · ipcn-api-dl · CCDB · eflora +1
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 type112 282 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 institutions119 of 199 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| SLU Artdatabankenlocation not on record | 109 |
| Madison, US | 102 |
| St. Paul, US | 101 |
| Philadelphia, US | 101 |
| MeiseBGlocation not on record | 83 |
| Odawara, JP | 79 |
| Philadelphia, US | 78 |
| Chongqing Museumlocation not on record | 60 |
| Brussel, BE | 56 |
| Provincia di Livornolocation not on record | 54 |
| Tsukuba, JP | 54 |
| University of New Hampshirelocation not on record | 49 |
| Fukushima Universitylocation not on record | 46 |
| WTUlocation not on record | 44 |
| Nagano City, JP | 43 |
| Toyama, JP | 42 |
| Allentown, US | 30 |
| Ann Arbor, US | 30 |
| LDlocation not on record | 29 |
| Bando, JP | 27 |
| International Salmonella Centre (W.H.O.)location not on record | 27 |
| Salzburg, AT | 26 |
| Saint Louis, US | 26 |
| College Park, US | 24 |
| Bloomington, US | 24 |
| Tomioka, JP | 22 |
| Wuzhou, CN | 21 |
| Green Bay, US | 21 |
| University of Stellenboschlocation not on record | 21 |
| DULlocation not on record | 20 |
| Missoula, US | 19 |
| Shinshu Universitylocation not on record | 19 |
| Sanda, JP | 18 |
| Görlitz, DE | 18 |
| DBF-NHMDlocation not on record | 17 |
| Bangkok, TH | 17 |
| KURAlocation not on record | 17 |
| Burlington, US | 17 |
| Moscow, US | 16 |
| Corvallis, US | 16 |
| Tokushima, JP | 15 |
| Chiba, JP | 15 |
| Canadian Department of Agriculturelocation not on record | 14 |
| LfUlocation not on record | 13 |
| Tartu, EE | 12 |
| Université Lavallocation not on record | 11 |
| Montréal, CA | 10 |
| Nagatoro-machi, Chichibu-gun, JP | 10 |
| CJBGlocation not on record | 10 |
| PrivatHerblocation not on record | 10 |
| Mlocation not on record | 10 |
| Bronx, US | 9 |
| Ernst-Moritz-Arndt-Universitat Greifswaldlocation not on record | 9 |
| Boise, US | 9 |
| Olocation not on record | 9 |
| Vancouver, CA | 9 |
| Oskarshamn, SE | 9 |
| BRNUlocation not on record | 8 |
| Pullman, US | 8 |
| H-Hohlalocation not on record | 8 |
| Portland, US | 8 |
| Natural History Museum Rotterdamlocation not on record | 8 |
| BSBIlocation not on record | 8 |
| Turku, FI | 7 |
| BFLlocation not on record | 7 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 7 |
| New Haven, US | 7 |
| Victoria, CA | 7 |
| PRClocation not on record | 7 |
| Whitewater, US | 7 |
| Hiratsuka City Museumlocation not on record | 7 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 7 |
| Williamsburg, US | 6 |
| Hokkaido University Museumlocation not on record | 6 |
| JP | 6 |
| Otaru, JP | 6 |
| Berlin, DE | 6 |
| Riverside, US | 6 |
| Logan, US | 6 |
| Lord Fairfax Community Collegelocation not on record | 6 |
| Bozeman, US | 6 |
| Flagstaff, US | 5 |
| University of Alberta Museumslocation not on record | 5 |
| South Kensington, GB | 5 |
| Keene State Universitylocation not on record | 5 |
| Warwickshire Museumlocation not on record | 5 |
| Claremont, US | 5 |
| Tampa, US | 5 |
| Royal Botanic Garden Edinburghlocation not on record | 5 |
| Durham, US | 5 |
| Moscow State Universitylocation not on record | 5 |
| Little Rock, US | 5 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 5 |
| BISONlocation not on record | 5 |
| Helsinki, FI | 4 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 4 |
| Toronto, CA | 4 |
| H-AkrKGlocation not on record | 4 |
| University of Wisconsinlocation not on record | 4 |
| Québec, CA | 4 |
| John May Museum of Natural Historylocation not on record | 4 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 4 |
| Uppsala, SE | 4 |
| Saint John, CA | 3 |
| Bergen, NO | 3 |
| Mexico City, MX | 3 |
| Acadia Universitylocation not on record | 3 |
| Caldwell, US | 3 |
| Chadron, US | 3 |
| Zürich, CH | 3 |
| GB | 3 |
| Trondheim, NO | 3 |
| Lincoln, US | 3 |
| TUR-Alocation not on record | 3 |
| Austin, US | 3 |
| Stockholm, SE | 3 |
| Millersville, US | 3 |
| Angwin, US | 3 |
| Longwood Universitylocation not on record | 3 |
| Fort Worth, US | 3 |
| Kochi, JP | 3 |
| San Diego, US | 3 |
| BIO-UNIPIlocation not on record | 3 |
| Dekalb, US | 3 |
| Wlocation not on record | 3 |
| València, ES | 3 |
| Oswego, US | 3 |
| Namur, BE | 2 |
| US | 2 |
| Senckenberg Institute for Plant Form and Function at Friedrich Schiller University Jenalocation not on record | 2 |
| Frankfurt am Main | 2 |
| Tuscaloosa, US | 2 |
| Umeå Universitylocation not on record | 2 |
| Fayetteville, US | 2 |
| Parthenon Tama History Museumlocation not on record | 2 |
| Ypsilanti, US | 2 |
| Chapel Hill, US | 2 |
| Davis, US | 2 |
| MAlocation not on record | 2 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 2 |
| Tilburg, NL | 2 |
| Osaka, JP | 2 |
| University of British Columbia, Herbariumlocation not on record | 2 |
| Denver, US | 2 |
| Lausanne, CH | 2 |
| Museo Achille Folettolocation not on record | 2 |
| Sagamihara, JP | 2 |
| Naturalis Biodiversity Centerlocation not on record | 2 |
| Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record | 2 |
| James F. Matthews Center for Biodiversity Studieslocation not on record | 2 |
| Chicago, US | 2 |
| Paris, FR | 1 |
| CJBNlocation not on record | 1 |
| Adam Mickiewicz University in Poznańlocation not on record | 1 |
| Knoxville, US | 1 |
| Spearfish, US | 1 |
| CASlocation not on record | 1 |
| Museo Nacional de Costa Rica (MNCR)location not on record | 1 |
| BG-NMNHSlocation not on record | 1 |
| Fulda, DE | 1 |
| Dresden, DE | 1 |
| Long Beach, US | 1 |
| Museum of the Rockieslocation not on record | 1 |
| University of Southern Mississippilocation not on record | 1 |
| Due West, US | 1 |
| Black Rock Forest Consortiumlocation not on record | 1 |
| Morgantown, US | 1 |
| Toyota city nature sanctuarylocation not on record | 1 |
| Guatemala, GT | 1 |
| Auckland, NZ | 1 |
| Fredericksburg, US | 1 |
| Rocky Mountain Biological Laboratorylocation not on record | 1 |
| San Luis Obispo, US | 1 |
| Durango, US | 1 |
| Henderson, US | 1 |
| Davenport, US | 1 |
| Kew, GB | 1 |
| Chicago, US | 1 |
| BioFokuslocation not on record | 1 |
| KIRMlocation not on record | 1 |
| Kushiro City Museumlocation not on record | 1 |
| Anchorage, US | 1 |
| China Agricultural Universitylocation not on record | 1 |
| US | 1 |
| Portland, US | 1 |
| Frauenfeld, CH | 1 |
| Taipei, TW | 1 |
| University of Guelph, OAC Herbariumlocation not on record | 1 |
| Provo, US | 1 |
| University of North Carolina at Pembrokelocation not on record | 1 |
| Fredericton Stock Culture Collectionlocation not on record | 1 |
| Nijmegen, NL | 1 |
| Bern, CH | 1 |
| LINUlocation not on record | 1 |
| Maryland Department of Natural Resourceslocation not on record | 1 |
| Sendai, JP | 1 |
| Research Collection of B. A. Bennettlocation not on record | 1 |
| Whitehorse, CA | 1 |
| EL PASO, US | 1 |
Where the DNA of Elodea nuttallii 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.