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 macrocephala has left across the world's sequence archives.
At a glance
DNA specimens16
Marker genes5
GenBank sequences10
eDNA detections14
Countries3
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.
★matK3★rbcL3★rbcLa★ITS4★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualCarex macrocephala 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.
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 = 74 n = 37
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 741×CCDB · book-ipcn67-71
CCDB · book-ipcn67-71 — TAYLOR, R.L., & G.A. MULLIGAN. 1968. Flora of the Queen Charlotte Islands. Part 2. Cytological aspects of the Vascular Plants. Queen's Printer, Ottawa. pp. 148.
n 371×CCDB · book-ipcn73-74
CCDB · book-ipcn73-74 — POJAR, J. 1973. Levels of polyploidy in four vegetation types of southwestern British Columbia. Canad. J. Bot. 51: 621-628. I
n 391×CCDB · book-ipcn67-71
CCDB · book-ipcn67-71 — TAYLOR, R.L., & G.A. MULLIGAN. 1968. Flora of the Queen Charlotte Islands. Part 2. Cytological aspects of the Vascular Plants. Queen's Printer, Ottawa. pp. 148.
08Occurrence & distribution
Record type1 796 records
Wild obs. + sensor1 472
Museum / vouchered323
Other1
Range
Area of Occupancy AOO2 360 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 accuracy88% within 1 km
≤100 m 843≤1 km 177≤10 km 68>10 km 77
1 165 georeferenced · 307 without coordinates
Open the mapobservation + sensor1 472
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 accuracy36% within 1 km
≤1 km 21≤10 km 37>10 km 1
59 georeferenced · 264 without coordinates
Open the institutions mapphysical evidence323
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 institutions36 of 58 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Pullman, US
56
Moscow State Universitylocation not on record
28
Vancouver, CA
27
Bronx, US
26
KIRMlocation not on record
15
Victoria, CA
13
Tsukuba, JP
11
Madison, US
10
Kushiro City Museumlocation not on record
10
Portland, US
9
GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record
8
Chicago, US
8
Nagano City, JP
6
Ann Arbor, US
6
Nishihara, JP
5
SIHUlocation not on record
4
Obihiro Centennial City Museumlocation not on record
4
Hokkaido University Botanic Gardenlocation not on record
4
Moscow, US
4
Montréal, CA
4
Corvallis, US
4
Bangkok, TH
3
ASUlocation not on record
3
Auckland, NZ
3
IWEP FEB RASlocation not on record
2
Whitehorse, CA
2
Sendai, JP
2
Peking Universitylocation not on record
2
Chongqing Museumlocation not on record
2
San Luis Obispo, US
2
University of Stellenboschlocation not on record
2
Provo, US
2
University of Alberta Museumslocation not on record
2
Saint Louis, US
2
DOI/NPS, San Juan Island National Historical Parklocation not on record
2
Christchurch, NZ
2
Anchorage, US
2
Oskarshamn, SE
2
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
2
Riverside, US
1
Tianjin Natural History Museumlocation not on record
1
Beijing, CN
1
University of British Columbia, Herbariumlocation not on record
1
Museum of the Rockieslocation not on record
1
San Angelo, US
1
Delaware State University, Claude E. Phillips Herbariumlocation not on record
1
J.F.Oberlin Universitylocation not on record
1
Bloomington, US
1
Tacoma, US
1
Cheney, US
1
Bend, US
1
Montréal, CA
1
Santa Barbara, US
1
DOI/FWS, Kenai National Wildlife Refugelocation not on record
1
Toyama, JP
1
Canadian Department of Agriculturelocation not on record
1
Dover, US
1
Frankfurt am Main
1
58 institutions · 320 of 323 vouchered records shown · 3 without an institution code
09Environmental DNA14 detections
Where the DNA of Carex macrocephala 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 found14
Studies independent surveys1
Countries3
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 14 detections have coordinates
Open the map3 countries0
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 median12.0 °C 8.60–12.8
Seasonal swing summer↔winter10.3 °C
Max temp (day)13.4 °C 10.6–13.8
Min temp (night)10.9 °C 5.20–12.0
Precipitation188 mm/mo 114–318
Air humidity66.9 % 65.5–67.3
Vapour deficit461 Pa 434–483
Cloud cover43.2 % 39.6–46.4
CHELSA 1981–2010, ~9 km grid, at location & month of 4 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.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 796 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI14 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics16 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗