Elodea canadensis

Plantae/Tracheophyta/Liliopsida/Alismatales/Hydrocharitaceae/Elodea

At a glance

Occurrence records123 295

Data sources13

Biological traits133

DNA specimens45

eDNA detections35

Sources13 archives

Databases and archives Elodea canadensis's data was compiled from.

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility123 295 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI35 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics45 specimens↗

LOTUSNatural Products (Wikidata)compounds↗

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

Paleobiology DatabasePBDB consortiumfossil record↗

WikidataWikimedia Foundationstructured facts↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page7 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements6 literature sources133 traits

Chemical compositionLOTUS12 compounds

Occurrence & distributionGBIF123 295 records

Environmental DNA1 datasets · 4 countries35 detections

DNA & barcodingBOLD45 specimens

Genome at a glanceCCDB · GoaT4.9 Gbp

01Narrative

L’élodée du Canada ou peste-d'eau est une espèce de plantes à fleurs monocotylédones de la famille des Hydrocharitaceae. C'est une plante aquatique originaire d’Amérique du Nord. Elle est couramment citée et utilisée comme plante d'aquarium pour sa forte capacité à oxygéner l'eau et de laboratoire car elle est facile à dupliquer et étudier. Introduite en Europe depuis le milieu du XIXe siècle, elle y est considérée comme une plante envahissante, cependant son expansion est stabilisée depuis le milieu du XXe siècle du fait de l'introduction d'une espèce concurrente, Elodea nutallii.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesTRYLEDAGIFTAusTraitsWCVPUSDA

Size & morphology21

Leaf length12.5 mm

Leaf length max15 mm

Leaf length min6 mm

Leaf mass0.573 mg

Leaf size32 mm²

⚠ sources differ — TRY: 32 mm² · LEDA: 22 mm² · GIFT: 22 mm²

Leaf width3.5 mm

Leaf width max5 mm

Leaf width min1 mm

Plant height3 m

⚠ sources differ — GIFT: 3 m · TRY: 0.938 m

Plant height generative0.45 m

Plant height max6 m

Plant height min0.3 m

Seed length5 mm

⚠ sources differ — TRY: 5 mm · GIFT: 0 mm

Seed length max0 mm

Seed length min0 mm

Seed mass0 mg

Seed mass max0 mg

Seed mass min0 mg

Seed width0 mm

Seed width max0 mm

Seed width min0 mm

Life cycle & reproduction38

After harvest regrowth rateSlow

Bloom periodSummer

Coppice potentialNo

Deciduousnessevergreen

Dehiscenceindehiscent

Dispersal typeself

Flower colourwhite

Flower conspicuousNo

Flower length max5 mm

Flower length min2.5 mm

Flowering endAug

Flowering startMay

Flowering timeyynnnnnnnyyy

Fruit seed period beginSummer

Fruit seed period endFall

Growth rate USDARapid

Life formhydrosubshrub

Life spanperennial

⚠ sources differ — TRY: perennial · AusTraits: perennial · LEDA: poly-annuals > 50 years (long-lived perennials) · GIFT: perennial

Lifespan categoryLong

Pollination modeabiotic

Pollination syndromewater

Propagated by bare rootNo

Propagated by bulbNo

Propagated by containerNo

Propagated by cormNo

Propagated by cuttingsNo

Propagated by seedYes

Propagated by sodNo

Propagated by sprigsYes

Propagated by tubersNo

Raunkiær life formcryptophyte

Reproduction asexualabsent

Resprout abilityNo

Seed number0

Seed spread rateSlow

Seedling vigorHigh

Sex typedioecious

Vegetative spread rateRapid

Diet & foraging2

Carnivorynon-carnivorous

Parasiteindependent

Habitat & environment28

Active growth periodSpring

Adapted to coarse textured soilsNo

Adapted to fine textured soilsYes

Adapted to medium textured soilsNo

Aquaticaquatic

BloatNone

Climatetemperate

Climberself-supporting

Epiphyteterrestrial

Foliage colorGray-Green

Foliage porosity summerModerate

Foliage porosity winterPorous

Foliage textureMedium

Fruit colouryellow

Fruit typecapsule

⚠ sources differ — AusTraits: capsule · GIFT: berry

Growth formherb

⚠ sources differ — GIFT: herb · AusTraits: herb · TRY: hydrophyte

Growth form USDAMultiple Stem

Habitat GIFTbrackish water, canals, lakes, swamps

Hedge toleranceNone

Known allelopathNo

Leaf formelliptic

Leaf retentionNo

Low growing grassNo

Mycorrhiza typenon-mycorrhizal

Root depth min0 in

Shape and orientationErect

Small grainNo

Woodinessnon-woody

Physiology & chemistry23

Anaerobic toleranceHigh

C:N ratioHigh

Caco3 toleranceHigh

Cold stratification requiredNo

Drought toleranceNone

Fertility requirementMedium

Fire resistantYes

Frost free days min160 days

Leaf C:N ratio8.97 g/g

Leaf c394 mg/g

Leaf dry-matter content (LDMC)165 mg/g

⚠ sources differ — TRY: 165 mg/g · LEDA: 272 mg/g

Leaf n43.22 mg/g

Moisture useHigh

Nitrogen fixation levelNone

Photosynthetic pathwayC3

⚠ sources differ — TRY: C3 · GIFT: C4

Precipitation max60 in

Precipitation min12 in

Salinity toleranceNone

Shade toleranceHigh

Soil pH max7.8 pH

Soil pH min4.8 pH

Specific leaf area (SLA)77.72 mm²/mg

⚠ sources differ — TRY: 77.72 mm²/mg · LEDA: 36.74 mm²/mg · GIFT: 36.74 mm²/mg

Temperature min-33 °F

Uses & economy12

Berry nut seed productNo

Christmas tree productNo

Commercial availabilityRoutinely Available

Fodder productNo

Lumber productNo

Naval store productNo

Nursery stock productNo

Palatable humanNo

Post productNo

Pulpwood productNo

ToxicityNone

Veneer productNo

Other traits9

Diaspore typevegetative

Fall conspicuousNo

Fruit seed abundanceLow

Fruit seed conspicuousNo

Fruit seed persistenceNo

Leaf arrangementwhorled

Planting density max19 000 per acre

Planting density min11 000 per acre

Shoot length max300 cm

03Chemical composition12 compounds

Compounds documented for Elodea canadensis across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile5 classes

Flavones3

Phytane diterpenoids3

Stigmastane steroids1

Other Octadecanoids1

Hydroxy fatty acids $ Leukotrienes $ Other Octadecanoids1

Documented compounds12 total

Compound	Amount	Source
(2R,7S,11S,15S)-7,11,15,19-tetramethyl-3-methylidene-2-[(E,7R)-3,7,11-trimethyldodec-2-enyl]icosan-1-ol	present	LOTUS
(2S,3S,4S,5S,6R)-6-[(2S,3R,4S,5S,6S)-6-carboxy-4,5-dihydroxy-2-[5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-4-oxochromen-7-yl]oxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylic acid	present	LOTUS
(7S,8E,10Z,13Z)-7-hydroxyhexadeca-8,10,13-trienoic acid	present	LOTUS
(7Z,10R,11E,13Z)-10-hydroxyhexadeca-7,11,13-trienoic acid	present	LOTUS
2-(1-Tridecen-12-ynyl)furan	present	LOTUS
2-[(E)-tridec-1-en-12-ynyl]furan	present	LOTUS
Apigenin 7-O-diglucuronide	present	LOTUS
Avocadynofuran	present	LOTUS
beta-Sitosterol	present	LOTUS
Fats And Glyceridic Oils Impurity 30	present	LOTUS

05DNA & barcoding45 specimens

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 canadensis has left across the world's sequence archives.

At a glance

DNA specimens45

Marker genes5

eDNA detections35

Countries6

Marker genes sequenced

★ 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.

matKrbcLrbcLaITSITS2

plant barcodefungal barcode

06Genome at a glanceCCDB · GoaT

The complete instruction manual Elodea 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

Genome size4 890 000 000 bp

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).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

INSECT0.25 Gb

HUMAN3.2 Gb

THIS GENOME Elodea canadensis4.89 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

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.

Chromosomes2n = 48 n = 24

Ploidy4× tetraploid · measured

Chromosome records24–962n range48median48mode47records

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 4825×GoaT · Kew Plant DNA C-values Database · CCDB · slov-fl · CCDB · poland +9

GoaT · Kew Plant DNA C-values Database — ↗

CCDB · slov-fl — Uhríková A. & Feráková V., 1980: [Report], pp. 726-727. - In: Löve Á. (ed.), Chromosome number reports LXIX, Taxon 29 /5-6.

CCDB · slov-fl — Feráková V., Kochjarová J., Králik E., Schwarzová T. & Záborský J., 1997: Cievnaté rastliny, pp. 86-156. - In: Feráková V. & Kocianová E. (eds), Flóra, geológia a paleontológia Devínskej Kobyly. Litera, Bratislava.

CCDB · poland — Skali?ska M., Jankun A., Wcis?o H. et al. 1971. Studies in chromosome numbers of Polish Angiosperms. Eighth contribution. Acta Biol. Cracov. Ser. Bot. 14, 55-102.

CCDB · book-ipcn65 — Ikusima & K. 1965

CCDB · ipcn-api-dl — Parfenov, V. I. & S. A. Dmitrieva. 1988. Kariologicheskaja kharakteristika predstavitelej flory sosudistykh rastenij Berezinskogo biosfernogo zapovednika. Zapov. Belorussii Issl. 12: 3–8.

CCDB · ipcn-api-dl — Uhrikova, A. & V. Ferakova. 1980. In Chromosome number reports LXIX. Taxon 29: 726–727.

CCDB · book-ipcn67-71 — SKALINSKA, M., A. JANKUN, H. WCISLO ET AL. 1971. Studies in chromosome numbers of Polish Angiosperms. Eighth contribution. Acta Biol. Cracov., Ser. Bot. 14: 55-102.

CCDB · book-fedorov — Winge 1923

CCDB · book-fedorov — Santos 1924

CCDB · book-fedorov — Rohweder 1937

CCDB · book-fedorov — Delay 1947 .

CCDB · book-fedorov — Harada 1956

CCDB · book-fedorov — Santos 1923

CCDB · book-fedorov — Westergaard 1958

CCDB · book-atlas-flowering-plants — Santos 1924

CCDB · kew — Baum A, Kenton AY, Bennett MD. (pers. comm. 1989).

CCDB · Cave1956 — Harada

CCDB · CromoCat 2015 — Cheshmedziev, I. V. (1994). Reports (313-366). Fl. Medit. 4: 269-279.

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

CCDB · CromoCat 2015 — Uhríková, A. & V. Feráková. (1980). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXIX]. Taxon 29(5): 726-727.

CCDB · iapt — IAPT/IOPB Chromosome Data 28

2n 2410×CCDB · iapt · CCDB · ipcn-api-dl · CCDB · eflora +3

CCDB · iapt — IAPT/IOPB Chromosome Data 13

CCDB · ipcn-api-dl — Love, A. & D. Love. 1981b. In Chromosome number reports LXXII. Taxon 30: 699–701.

CCDB · eflora

CCDB · book-fedorov — Whlie R. 1904

CCDB · book-fedorov — Jo n H. 1965

CCDB · book-atlas-flowering-plants — Heppell 1945 *

CCDB · CromoCat 2015 — Chepinoga, V. V., Gnutikov, A. A., Lubogoschinsky, P. I. & Fleckenstein, K. M. (2012). IAPT/IOPB Chromosome Data 13 Taxon 61:889-891

CCDB · CromoCat 2015 — Löve, A. & Löve, D. (1981c). Reports [In Löve, A. (ed.), IOPB chromosome numbers reports LXXII]. Taxon 30(3): 699-701.

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

2n 322×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

2n 402×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

2n 562×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

2n 642×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

2n 722×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

2n 962×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Muratova (2006). Chromosome numbers of Elodea canadensis (Hydrocharitaceae) in the channels of the Yenisey River Bot. Žhurn. (Moscow & Leningrad) 91(3): 483–486

CCDB · CromoCat 2015 — Muratova (2006). Cytogenetic effects of a mining-chemical group on the cells of Elodea canadensis Michx Vestn. KrasGAU (Krasnoyarsk) 14: 159–164

n 01×CCDB · CromoCat 2015

CCDB · CromoCat 2015 — Chepinoga, V. V., Gnutikov, A. A., Lubogoschinsky, P. I. & Fleckenstein, K. M. (2012). IAPT/IOPB Chromosome Data 13 Taxon 61:889-891

n 241×CCDB · Cave1956

CCDB · Cave1956 — Harada

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

tetraploid1×GoaT · Kew Plant DNA C-values Database

GoaT · Kew Plant DNA C-values Database

polyploid inferred1×PloiDB · family-scale

PloiDB · family-scale — chromEvol; reliability=1.000 ↗

08Occurrence & distribution

Record type123 295 records

Wild obs. + sensor113 240

Museum / vouchered9 841

Cultivated / captive40

Other174

Origin

Native104

Introduced6 793

Range

Area of Occupancy AOO175 632 km²

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

Coordinate accuracy61% within 1 km

≤100 m 43 336≤1 km 16 135≤10 km 36 521>10 km 768

96 760 georeferenced · 16 480 without coordinates

Open the mapobservation + sensor113 240

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.

Coordinate accuracy42% within 1 km

≤100 m 568≤1 km 1 821≤10 km 2 551>10 km 814

5 754 georeferenced · 4 087 without coordinates

Open the institutions mapphysical evidence9 841

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

Coordinate accuracy100% within 1 km

≤1 km 1

1 georeferenced · 39 without coordinates

Open the mapnot free-living40

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

10Collections & institutions

Holding institutions150 of 264 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Uniwersytet Wrocławskilocation not on record	1 687
Helsinki, FI	610
Madison, US	295
LDlocation not on record	266
BFLlocation not on record	218
St. Paul, US	204
Moscow State Universitylocation not on record	180
Christchurch, NZ	179
Uppsala, SE	157
MeiseBGlocation not on record	154
Green Bay, US	138
Brussel, BE	133
Ernst-Moritz-Arndt-Universitat Greifswaldlocation not on record	129
Oulu, FI	123
Tartu, EE	120
BRNUlocation not on record	111
SLU Artdatabankenlocation not on record	109
Chongqing Museumlocation not on record	108
Olocation not on record	105
Ann Arbor, US	101
WTUlocation not on record	85
Salzburg, AT	77
Pullman, US	74
Philadelphia, US	65
Oskarshamn, SE	65
Saint John, CA	62
Bern, CH	61
CJBGlocation not on record	61
Québec, CA	60
Corvallis, US	59
BIO-UNIPIlocation not on record	56
Uniwersytet Marii Curie-Skłodowskiejlocation not on record	56
Auckland, NZ	53
Provincia di Livornolocation not on record	52
Kuopio, FI	49
Museo Entomologico de Leonlocation not on record	48
Burlington, US	46
Irkutsk State Universitylocation not on record	46
Université Lavallocation not on record	45
GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record	43
Moscow, US	42
Montréal, CA	39
Mount Annan, AU	38
Vancouver, CA	38
Bloomington, US	38
Hobart, AU	37
Saint Louis, US	37
Wuzhou, CN	37
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record	37
Uniwersytet Warszawskilocation not on record	36
New Haven, US	36
Logan, US	34
Missoula, US	30
Turku, FI	29
Portland, US	28
Bronx, US	28
Jyväskylä, FI	27
Museum Ludovicae Ulricae, Zoology Institute of the University of Uppsalalocation not on record	25
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record	25
Görlitz, DE	25
DULlocation not on record	25
Metsähallituslocation not on record	25
South Kensington, GB	23
University of Alberta Museumslocation not on record	22
Acadia Universitylocation not on record	21
Toronto, CA	19
Chadron, US	19
Philadelphia, US	19
Musee des Dinosaures d'Esperaza (Aude)location not on record	18
University of Stellenboschlocation not on record	16
Trondheim, NO	16
SWlocation not on record	16
Canadian Department of Agriculturelocation not on record	15
Millersville, US	15
Bangkok, TH	15
Allentown, US	14
Canberra, AU	14
Dresden, DE	13
Victoria, CA	13
Henderson, US	13
College Park, US	12
TUR-Alocation not on record	12
Dekalb, US	12
Wlocation not on record	12
WINlocation not on record	12
Whitewater, US	12
PRClocation not on record	12
University of New Hampshirelocation not on record	11
Mlocation not on record	11
DOI/NPS, Colonial National Historical Parklocation not on record	11
Longwood Universitylocation not on record	11
Albuquerque, US	11
Bergen, NO	11
Lord Fairfax Community Collegelocation not on record	11
Boise, US	11
Montréal, CA	11
Hamilton, US	10
Claremont, US	10
Davis, US	10
Frankfurt am Main	10
Tallinn, EE	10
Henderson State Universitylocation not on record	9
Adelaide, AU	9
Santa Barbara, US	9
Tula State Lev Tolstoy Pedagogical Universitylocation not on record	9
Tampa, US	9
Paris, FR	9
DBF-NHMDlocation not on record	9
Philadelphia, US	9
Provo, US	9
CASlocation not on record	8
Porvoo, FI	8
Institut und Museum fuer Geologie und Palaeontologielocation not on record	8
Adam Mickiewicz University in Poznańlocation not on record	8
Riverside, US	8
Berlin, DE	8
Chicago, US	8
Science Museum of Minnesotalocation not on record	8
San Diego, US	8
Caldwell, US	8
Lincoln, US	8
Pocatello, US	7
Williamsburg, US	7
KMNlocation not on record	7
McWane Science Centerlocation not on record	7
Lausanne, CH	7
ISAlocation not on record	7
BDBClocation not on record	6
Mount Pleasant, US	6
University of Wisconsinlocation not on record	6
Bozeman, US	6
Nijmegen, NL	6
San Jose State University, Museum of Birds and Mammalslocation not on record	6
Bourges, FR	6
Anchorage, US	6
LfUlocation not on record	6
Zürich, CH	6
Stockholm, SE	6
US	6
QVMAGlocation not on record	6
Zürich, CH	5
MAlocation not on record	5
Spearfish, US	5
NMBU:MINAlocation not on record	5
SZUlocation not on record	5
EL PASO, US	5
Frauenfeld, CH	5
Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record	5
GJOlocation not on record	5
Flagstaff, US	5
La Trobe Universitylocation not on record	5
Museum of the Rockieslocation not on record	4
Trois-Rivières, CA	4
Hudson, US	4
James F. Matthews Center for Biodiversity Studieslocation not on record	4
Staten Island, US	4
Angwin, US	4
Columbia, US	4
Uniwersytet Śląski w Katowicachlocation not on record	4
Whitehorse, CA	4
Turlock, US	4
Arcata, US	4
San Sebastián, ES	4
Ypsilanti, US	4
Bend, US	4
The Tula Region State Institution of Culture "Tula Museum Association"location not on record	4
Chicago, US	3
Finnish Museum of Natural History, Botanical Museumlocation not on record	3
Royal Botanic Garden Edinburghlocation not on record	3
Rotorua, NZ	3
DOI/NPS, Greenbelt Parklocation not on record	3
BClocation not on record	3
Morgantown, US	3
Wellington, NZ	3
Brookings, US	3
Chapel Hill, US	3
Rocky Mountain Biological Laboratorylocation not on record	3
Denver, US	3
Fredericksburg, US	3
Xiamen, CN	3
San Angelo, US	3
PrivatHerblocation not on record	3
Tuscaloosa, US	3
John May Museum of Natural Historylocation not on record	3
Tilburg, NL	3
Universidad de Caldas (UCaldas)location not on record	3
Natural History Museum Rotterdamlocation not on record	3
Pacific Lutheran Universitylocation not on record	2
AUAlocation not on record	2
Naturalis Biodiversity Centerlocation not on record	2
Waverly, US	2
Royal Botanical Gardenslocation not on record	2
Severin-McDaniel Insect Collectionlocation not on record	2
Boumlocation not on record	2
València, ES	2
Armidale, AU	2
TROMlocation not on record	2
Davenport, US	2
The State Museum-Preserve "The Kulikovo pole"location not on record	2
H-AkrKGlocation not on record	2
Norfolk, US	2
San Luis Obispo, US	2
Porrentruy, CH	2
Denton, US	2
Oswego, US	2
Chicago, US	2
IDElocation not on record	2
Glarus, CH	2
Maryland Department of Natural Resourceslocation not on record	2
Beijing, CN	2
US	2
Barcelona, ES	2
Podgorica, ME	1
Long Beach, US	1
Ciudad de México, MX	1
B.A. Bennett Herbariumlocation not on record	1
DOI/FWS, Kenai National Wildlife Refugelocation not on record	1
Umeå Universitylocation not on record	1
Minia, EG	1
Truckee, US	1
Bureau of Land Management, Caliente Field Officelocation not on record	1
BSBIlocation not on record	1
Aarhus, DK	1
Cape Town, ZA	1
Parkville, AU	1
Museo Achille Folettolocation not on record	1
Keene State Universitylocation not on record	1
VALElocation not on record	1
Bruce Peninsula National Parklocation not on record	1
Alicante, ES	1
Elikins, US	1
Durham, US	1
Kew, GB	1
Knoxville, US	1
Conservatoire botanique national du Bassin parisienlocation not on record	1
Kensington, AU	1
University of Winnipeglocation not on record	1
NoColllocation not on record	1
Museum Wiesbadenlocation not on record	1
US	1
Ashland, US	1
Cheney, US	1
Entomological Society of Latvialocation not on record	1
Tromso University Museumlocation not on record	1
Muséum Henri Lecoqlocation not on record	1
CJBNlocation not on record	1
Brock University (BU)location not on record	1
Fairfax, US	1
University of British Columbia, Herbariumlocation not on record	1
China Agricultural Universitylocation not on record	1
GAlocation not on record	1
Taipei, TW	1
Research Collection of B. A. Bennettlocation not on record	1
Namur, BE	1
Ivano-Frankove, UA	1
University of Southern Mississippilocation not on record	1
Tula State Universitylocation not on record	1
Samara National Research Universitylocation not on record	1
Museo Nacional de Costa Rica (MNCR)location not on record	1
Uniwersytet Opolskilocation not on record	1
Brisbane, AU	1
GZUlocation not on record	1
John T. Waterhouse Herbariumlocation not on record	1
Durango, MX	1

264 institutions · 8 109 of 9 841 vouchered records shown · 1 665 without an institution code

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

09Environmental DNA35 detections

Where the DNA of Elodea 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

Detections DNA found35

Studies independent surveys1

Countries4

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 35 detections have coordinates

Open the map4 countries0

Often stranded in mud

How strong is each trace?

DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.

Modelled climatemodelled

−15°Ctemperature across detection sites+40°C

Temperature median15.7 °C 14.1–17.0

Seasonal swing summer↔winter16.9 °C

Max temp (day)19.6 °C 18.5–21.0

Min temp (night)11.5 °C 10.5–13.4

Precipitation84.5 mm/mo 71.7–97.9

Air humidity60.5 % 57.8–62.3

Moisture balance-24.8 mm/mo -50.5–5.00

Vapour deficit708 Pa 663–751

Wind speed3.90 m/s 2.40–5.80

Cloud cover45.7 % 36.5–51.8

CHELSA 1981–2010, ~9 km grid, at location & month of 11 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche

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.

At a glance

Sources13 archives

Size & morphology21

Life cycle & reproduction38

Diet & foraging2

Habitat & environment28

Physiology & chemistry23

Uses & economy12

Other traits9

Compound class profile5 classes

Documented compounds12 total

At a glance

Genome sizehow big the whole instruction manual is

Chromosomes & ploidyhow the DNA is packaged

Record type123 295 records

Origin

Range

Wildobservation + sensor

Museum / Voucheredphysical evidence

Cultivated / Captivenot free-living

Wildobservation + sensor

Holding institutions150 of 264 geolocated

Cultivated / Captivenot free-living

Signal

Where its DNA was found

How strong is each trace?

Modelled climatemodelled

Record type123 295 records