Glyceria canadensis
(Michx.) Trin. · speciesAt a glance
Sources12 archives
Databases and archives Glyceria canadensis's data was compiled from.
WikipediaWikimedia Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 102 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI7 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics11 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & 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.
Glyceria canadensis is a species of grass in the genus Glyceria which is known by the common name rattlesnake mannagrass. It is native to North America, from British Columbia to Newfoundland and south to North Carolina. It is commonly found in wet areas.
No narrative description available for this taxon yet.
Size & morphology4
Life cycle & reproduction27
Diet & foraging1
Habitat & environment24
Physiology & chemistry20
Uses & economy13
Other traits6
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 Glyceria canadensis 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 Glyceria canadensis 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 601×CCDB · book-atlas-flowering-plants
n 601×CCDB · ipcn-api-dl
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 type4 102 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 institutions72 of 110 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Madison, US | 379 |
| Chongqing Museumlocation not on record | 203 |
| Québec, CA | 187 |
| St. Paul, US | 148 |
| University of New Hampshirelocation not on record | 132 |
| Acadia Universitylocation not on record | 126 |
| Bronx, US | 126 |
| Philadelphia, US | 119 |
| Chicago, US | 99 |
| Université Lavallocation not on record | 98 |
| Ann Arbor, US | 95 |
| Montréal, CA | 75 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 69 |
| Burlington, US | 54 |
| New Haven, US | 49 |
| Green Bay, US | 49 |
| Chapel Hill, US | 48 |
| University of Wisconsinlocation not on record | 46 |
| Oregon State Universitylocation not on record | 42 |
| Saint John, CA | 35 |
| Bloomington, US | 29 |
| University of Stellenboschlocation not on record | 24 |
| Durham, US | 23 |
| Toronto, CA | 23 |
| Vancouver, CA | 20 |
| Philadelphia, US | 20 |
| Allentown, US | 20 |
| Tampa, US | 18 |
| Keene State Universitylocation not on record | 17 |
| McWane Science Centerlocation not on record | 16 |
| Staten Island, US | 15 |
| Williamsburg, US | 13 |
| Logan, US | 13 |
| College Park, US | 8 |
| WTUlocation not on record | 8 |
| Paris, FR | 8 |
| Wuzhou, CN | 7 |
| Oswego, US | 7 |
| Saint Louis, US | 7 |
| Ypsilanti, US | 6 |
| Mississippi State, US | 6 |
| WINlocation not on record | 6 |
| Kingston, US | 6 |
| Trois-Rivières, CA | 6 |
| ASUlocation not on record | 4 |
| Dekalb, US | 4 |
| University of Alberta Museumslocation not on record | 4 |
| Corvallis, US | 4 |
| MeiseBGlocation not on record | 4 |
| Mohonk Preservelocation not on record | 4 |
| Chicago, US | 4 |
| Millersville, US | 3 |
| New Brunswick, US | 3 |
| San Angelo, US | 3 |
| Helsinki, FI | 3 |
| Davenport, US | 3 |
| Chicago, US | 3 |
| Auckland, NZ | 3 |
| Flagstaff, US | 3 |
| Maryland Department of Natural Resourceslocation not on record | 2 |
| University of Guelph, OAC Herbariumlocation not on record | 2 |
| University of Winnipeglocation not on record | 2 |
| Riverside, US | 2 |
| State University of New York, College at Oneontalocation not on record | 2 |
| Royal Botanical Gardenslocation not on record | 2 |
| Whitehorse, CA | 2 |
| Norfolk, US | 2 |
| Turku, FI | 2 |
| Montréal, CA | 2 |
| University of Wisconsinlocation not on record | 2 |
| Mount Pleasant, US | 2 |
| Whitewater, US | 2 |
| Brussel, BE | 2 |
| DULlocation not on record | 2 |
| Dover, US | 2 |
| Victoria, CA | 1 |
| Black Rock Forest Consortiumlocation not on record | 1 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 1 |
| Canadian Department of Agriculturelocation not on record | 1 |
| DOI/NPS, Greenbelt Parklocation not on record | 1 |
| Museo Achille Folettolocation not on record | 1 |
| Knoxville, US | 1 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 1 |
| Oulu, FI | 1 |
| València, ES | 1 |
| Weber State Universitylocation not on record | 1 |
| Provo, US | 1 |
| Chadron, US | 1 |
| Salamanca, ES | 1 |
| James F. Matthews Center for Biodiversity Studieslocation not on record | 1 |
| Washington, US | 1 |
| Santa Barbara, US | 1 |
| Namur, BE | 1 |
| Pretoria, ZA | 1 |
| MAlocation not on record | 1 |
| Taipei, TW | 1 |
| Dresden, DE | 1 |
| Canadian Museum of Nature, National Herbarium of Canadalocation not on record | 1 |
| Columbia, US | 1 |
| Pullman, US | 1 |
| EL PASO, US | 1 |
| Boise, US | 1 |
| West Virginia Wesleyan Collegelocation not on record | 1 |
| Jaén, ES | 1 |
| McGill University, Herbariumlocation not on record | 1 |
| Jackson, US | 1 |
| Morgantown, US | 1 |
| LDlocation not on record | 1 |
| GAlocation not on record | 1 |
| Meguro Parasitological Museumlocation 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 Glyceria canadensis 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.