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 Cyperus schweinitzii has left across the world's sequence archives.
At a glance
DNA specimens16
Marker genes5
GenBank sequences10
eDNA detections8
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.
★matK1★rbcL1★rbcLa★ITS8★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualCyperus schweinitzii 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.
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 802×CCDB · cyper-only · CCDB · ipcn-api-dl
CCDB · cyper-only — Lve, . & D. Lve1981
CCDB · ipcn-api-dl — Love, A. & D. Love. 1981c. In Chromosome number reports LXXIII. Taxon 30: 845–851.
2n 1661×CCDB · eflora
CCDB · eflora
08Occurrence & distribution
Record type1 839 records
Wild obs. + sensor436
Museum / vouchered1 399
Other4
Range
Area of Occupancy AOO5 316 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 accuracy76% within 1 km
≤100 m 235≤1 km 28≤10 km 27>10 km 58
348 georeferenced · 88 without coordinates
Open the mapobservation + sensor436
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 accuracy39% within 1 km
≤100 m 82≤1 km 257≤10 km 461>10 km 79
879 georeferenced · 520 without coordinates
Open the institutions mapphysical evidence1 399
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 institutions76 of 107 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Wuzhou, CN
228
Madison, US
158
St. Paul, US
132
Bronx, US
83
DOI/NPS, Colonial National Historical Parklocation not on record
49
International Salmonella Centre (W.H.O.)location not on record
46
Ann Arbor, US
44
Chadron, US
38
WINlocation not on record
37
Chongqing Museumlocation not on record
35
Allentown, US
30
Albuquerque, US
24
University of Alberta Museumslocation not on record
23
Denver, US
23
Bloomington, US
20
DOI/NPS, Greenbelt Parklocation not on record
19
Lincoln, US
19
Green Bay, US
18
Flagstaff, US
16
Saint Louis, US
16
Bangkok, TH
16
Philadelphia, US
16
Dekalb, US
13
Tampa, US
12
Moscow, US
11
Fort Worth, US
10
Provo, US
10
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
10
Lubbock, US
10
Austin, US
9
Davenport, US
9
San Angelo, US
9
Logan, US
8
Pullman, US
8
Emporia, US
7
University of Wisconsinlocation not on record
7
Toronto, CA
7
Missoula, US
7
Science Museum of Minnesotalocation not on record
7
WTUlocation not on record
7
University of Stellenboschlocation not on record
7
Brookings, US
5
Phoenix, US
5
ASUlocation not on record
5
DULlocation not on record
4
Guasave, MX
4
Claremont, US
4
Weber State Universitylocation not on record
4
Mississippi State, US
4
Burlington, US
4
Royal Ontario Museum, Green Plant Herbarium (TRT)location not on record
4
Bozeman, US
4
Museum of the Rockieslocation not on record
3
Boise, US
3
Montréal, CA
3
Whitewater, US
3
BIO-UNIPIlocation not on record
3
Christchurch, NZ
2
Pocatello, US
2
Chapel Hill, US
2
US
2
Beijing, CN
2
US
2
IDElocation not on record
2
Chicago, US
2
Acadia Universitylocation not on record
2
Durango, MX
2
San Luis Obispo, US
2
Auckland, NZ
2
Spearfish, US
2
Oskarshamn, SE
2
Musee des Dinosaures d'Esperaza (Aude)location not on record
2
Corvallis, US
2
Orem, US
2
Denton, US
1
Ypsilanti, US
1
Minia, EG
1
FLASlocation not on record
1
GB
1
MeiseBGlocation not on record
1
Zacatecas, MX
1
Moscow State Universitylocation not on record
1
Mexico City, MX
1
Philadelphia, US
1
Knoxville, US
1
Canadian Department of Agriculturelocation not on record
1
Chicago, US
1
Chapingo, MX
1
Whitehorse, CA
1
Québec, CA
1
Caldwell, US
1
CSBSJUlocation not on record
1
Kew, GB
1
Columbia, US
1
University of New Hampshirelocation not on record
1
Davis, US
1
New Haven, US
1
Cheney, US
1
Millersville, US
1
Keene State Universitylocation not on record
1
Pomona Collegelocation not on record
1
LDlocation not on record
1
Riverside, US
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
BAYLUlocation not on record
1
Montréal, CA
1
Paris, FR
1
107 institutions · 1 387 of 1 399 vouchered records shown · 12 without an institution code
09Environmental DNA8 detections
Where the DNA of Cyperus schweinitzii 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 found8
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 8 detections have coordinates
Open the map1 country0
Dry sandy field. Assoc. species: Festuca rubraedge of area flooded in springDry disturbed cindersSandy soil of roadside bank.Sandy beachDune eventree; palier sablonneux.
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 median20.2 °C 19.2–22.3
Seasonal swing summer↔winter31.0 °C
Max temp (day)24.5 °C 23.1–25.7
Min temp (night)18.0 °C 15.3–19.8
Precipitation85.0 mm/mo 81.9–96.0
Air humidity59.3 % 58.4–59.6
Moisture balance-59.1 mm/mo -71.2–-42.0
Vapour deficit975 Pa 916–1,093
Wind speed3.40 m/s 2.40–4.90
Cloud cover38.9 % 36.6–40.0
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.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 839 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics16 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗