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 Carex virescens has left across the world's sequence archives.
At a glance
DNA specimens7
Marker genes5
GenBank sequences5
eDNA detections6
Countries1
The DNA barcodea real sequence read deposited for this species
★ 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.
★matK★rbcL1★rbcLa★ITS4★ITS2
plant barcodefungal barcode
08Occurrence & distribution
Record type1 628 records
Wild obs. + sensor297
Museum / vouchered1 331
Range
Area of Occupancy AOO5 044 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 accuracy62% within 1 km
≤100 m 128≤1 km 21≤10 km 1>10 km 91
241 georeferenced · 56 without coordinates
Open the mapobservation + sensor297
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 accuracy30% within 1 km
≤100 m 43≤1 km 194≤10 km 507>10 km 54
798 georeferenced · 533 without coordinates
Open the institutions mapphysical evidence1 331
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 institutions58 of 80 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
252
Bronx, US
138
Chongqing Museumlocation not on record
95
Chicago, US
89
Allentown, US
85
Oregon State Universitylocation not on record
65
University of Stellenboschlocation not on record
49
Bloomington, US
47
Saint Louis, US
32
University of New Hampshirelocation not on record
31
Bangkok, TH
30
Johnson City, US
23
Philadelphia, US
22
Burlington, US
21
Madison, US
19
Williamsburg, US
18
Ann Arbor, US
18
Chapel Hill, US
18
College Park, US
17
Tampa, US
13
Dover, US
10
San Angelo, US
9
Clemson, US
8
Morgantown, US
8
Wuzhou, CN
8
Millersville, US
7
New Haven, US
7
Jackson, US
7
Columbia, US
7
Knoxville, US
6
Tuscaloosa, US
5
Mississippi State, US
5
Toronto, CA
5
Maryland Department of Natural Resourceslocation not on record
4
McWane Science Centerlocation not on record
4
Staten Island, US
4
St. Paul, US
3
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
3
Keene State Universitylocation not on record
3
Denver, US
3
Asheville, US
3
Auckland, NZ
3
Davenport, US
3
Christchurch, NZ
3
Fairfax, US
3
New Brunswick, US
2
Richmond, US
2
Pittsburg, US
2
Chicago, US
2
Norfolk, US
2
Lubbock, US
2
Durham, US
2
Museum of the Rockieslocation not on record
2
Valdosta State Universitylocation not on record
2
University of Tennessee at Chattanoogalocation not on record
2
Delaware State University, Claude E. Phillips Herbariumlocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
Québec, CA
1
AUAlocation not on record
1
North Carolina Museum of Natural Scienceslocation not on record
1
Cambridge, US
1
University of Toronto Mississaugalocation not on record
1
Little Rock, US
1
Armidale, AU
1
Palmerston North, NZ
1
James F. Matthews Center for Biodiversity Studieslocation not on record
1
Henderson, US
1
BClocation not on record
1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
1
Montréal, CA
1
Flagstaff, US
1
Beijing, CN
1
GAlocation not on record
1
Berlin, DE
1
Lord Fairfax Community Collegelocation not on record
1
Montréal, CA
1
Washington, US
1
BAYLUlocation not on record
1
Chadron, US
1
Wellington, NZ
1
80 institutions · 1 258 of 1 331 vouchered records shown · 73 without an institution code
09Environmental DNA6 detections
Where the DNA of Carex virescens 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 found6
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 6 detections have coordinates
Open the map1 country0
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 median18.2 °C 18.2–18.2
Seasonal swing summer↔winter28.3 °C
Max temp (day)23.5 °C
Min temp (night)13.0 °C
Precipitation106 mm/mo
Air humidity59.0 %
Moisture balance-26.6 mm/mo
Vapour deficit859 Pa
Wind speed2.60 m/s
Cloud cover45.3 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 628 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics7 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗