Carex longii
Mack. · speciesAt a glance
Sources11 archives
Databases and archives Carex longii's data was compiled from.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 421 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI8 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics10 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & 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.
Carex longii, or Long's sedge, is a species of sedge found in North America that was first described by Kenneth Mackenzie in 1922.
No narrative description available for this taxon yet.
Size & morphology3
Life cycle & reproduction8
Diet & foraging1
Habitat & environment9
Physiology & chemistry2
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 longii 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 Carex longii 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 581×CCDB · carex
2n 601×CCDB · carex
2n 621×CCDB · carex
n 291×CCDB · ipcn-api-dl
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 type2 421 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 institutions70 of 112 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Jackson, US | 421 |
| Bronx, US | 248 |
| Tampa, US | 129 |
| Philadelphia, US | 109 |
| Jena Microbial Resource Collectionlocation not on record | 88 |
| Valdosta State Universitylocation not on record | 87 |
| Ann Arbor, US | 75 |
| Chicago, US | 55 |
| Madison, US | 52 |
| College Park, US | 44 |
| San Angelo, US | 41 |
| Auckland, NZ | 35 |
| US | 35 |
| Durango, MX | 34 |
| Austin, US | 30 |
| Williamsburg, US | 30 |
| Saint Louis, US | 25 |
| Bangkok, TH | 25 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 25 |
| Bloomington, US | 24 |
| Columbia, US | 23 |
| Chapel Hill, US | 23 |
| University of Stellenboschlocation not on record | 18 |
| WTUlocation not on record | 15 |
| Dover, US | 15 |
| GAlocation not on record | 14 |
| Fort Worth, US | 14 |
| Miami, US | 12 |
| University of Southern Mississippilocation not on record | 11 |
| BAYLUlocation not on record | 11 |
| Christchurch, NZ | 11 |
| National Biodiversity Institute, Costa Ricalocation not on record | 11 |
| Burlington, US | 11 |
| Museum of the Rockieslocation not on record | 10 |
| Wuzhou, CN | 9 |
| Mexico City, MX | 9 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 9 |
| New Haven, US | 9 |
| Odawara, JP | 8 |
| Chongqing Museumlocation not on record | 8 |
| Maryland Department of Natural Resourceslocation not on record | 7 |
| Knoxville, US | 7 |
| Tall Timbers Research Stationlocation not on record | 7 |
| Guasave, MX | 7 |
| Mississippi State, US | 7 |
| Honolulu, US | 7 |
| Clemson, US | 6 |
| BISHlocation not on record | 5 |
| University of New Hampshirelocation not on record | 4 |
| Fayetteville, US | 4 |
| UFSClocation not on record | 3 |
| CASlocation not on record | 3 |
| Oregon State Universitylocation not on record | 3 |
| Riverside, US | 3 |
| EL PASO, US | 3 |
| Stockholm, SE | 3 |
| Universidade Federal de Santa Catarinalocation not on record | 3 |
| DOI/NPS, Mississippi National River & Recreation Arealocation not on record | 3 |
| Claremont, US | 2 |
| MAlocation not on record | 2 |
| James F. Matthews Center for Biodiversity Studieslocation not on record | 2 |
| Delaware State University, Claude E. Phillips Herbariumlocation not on record | 2 |
| University of Toronto Mississaugalocation not on record | 2 |
| Phoenix, US | 2 |
| Davis, US | 2 |
| Fairfax, US | 2 |
| FUVATESlocation not on record | 2 |
| AUAlocation not on record | 2 |
| Arcata, US | 1 |
| Badajoz, ES | 1 |
| Missoula, US | 1 |
| Criciúma, BR | 1 |
| Durham, US | 1 |
| Canadian Department of Agriculturelocation not on record | 1 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 1 |
| Corvallis, US | 1 |
| Montréal, CA | 1 |
| Victoria, CA | 1 |
| Brasília, BR | 1 |
| Conway, US | 1 |
| Kew, GB | 1 |
| UNESClocation not on record | 1 |
| Mount Pleasant, US | 1 |
| Cambridge, US | 1 |
| Denver, US | 1 |
| Minia, EG | 1 |
| Little Rock, US | 1 |
| Armidale, AU | 1 |
| Dekalb, US | 1 |
| Weber State Universitylocation not on record | 1 |
| California Academy of Scienceslocation not on record | 1 |
| Masindi, UG | 1 |
| MEXUlocation not on record | 1 |
| Denton, US | 1 |
| Millersville, US | 1 |
| University of Tennessee at Chattanoogalocation not on record | 1 |
| San Francisco, US | 1 |
| Aarhus, DK | 1 |
| HUAlocation not on record | 1 |
| Buenos Aires, AR | 1 |
| Jurica-Suchy Nature Museumlocation not on record | 1 |
| McWane Science Centerlocation not on record | 1 |
| UFPElocation not on record | 1 |
| Cenargenlocation not on record | 1 |
| Flagstaff, US | 1 |
| Vancouver, CA | 1 |
| Columbus State University Herbariumlocation not on record | 1 |
| Bogotá, D.C., CO | 1 |
| UTFPR-CPlocation not on record | 1 |
| Caldwell, US | 1 |
| Campo Mourão, BR | 1 |
| Universidade de Passo Fundolocation 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 Carex longii 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.