Carex texensis, the Texas sedge, is a species of flowering plant in the sedge family, Cyperaceae. It is endemic to the eastern, central, and southern United States. Its culms are 10–30 cm in height, and 0.5–1 mm wide basally to 0.4–0.5 mm wide distally. The leaves are green with the widest leaf blades 1–1.7 mm wide.
No narrative description available for this taxon yet.
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 texensis has left across the world's sequence archives.
At a glance
DNA specimens6
Marker genes4
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★rbcLa★ITS5★ITS2
plant barcodefungal barcode
08Occurrence & distribution
Record type607 records
Wild obs. + sensor109
Museum / vouchered498
Origin
Introduced1
Range
Area of Occupancy AOO1 860 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 accuracy85% within 1 km
≤100 m 74≤1 km 3>10 km 14
91 georeferenced · 18 without coordinates
Open the mapobservation + sensor109
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 accuracy70% within 1 km
≤100 m 99≤1 km 58≤10 km 50>10 km 16
223 georeferenced · 275 without coordinates
Open the institutions mapphysical evidence498
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 institutions48 of 67 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
106
Bronx, US
34
Madison, US
33
Saint Louis, US
32
Wuzhou, CN
27
Bloomington, US
20
Ann Arbor, US
19
San Angelo, US
19
Knoxville, US
16
Tuscaloosa, US
14
US
13
Oregon State Universitylocation not on record
10
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
8
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
7
Chongqing Museumlocation not on record
7
Chapel Hill, US
7
Columbia, US
7
Jena Microbial Resource Collectionlocation not on record
6
Clemson, US
6
Fairfax, US
6
Fort Worth, US
6
Bangkok, TH
5
BAYLUlocation not on record
5
Richmond, US
5
Little Rock, US
5
Austin, US
5
Philadelphia, US
5
Arcata, US
4
Fayetteville, US
4
Claremont, US
3
Mississippi State, US
3
Phoenix, US
3
Dover, US
2
Chadron, US
2
Chicago, US
2
University of Tennessee at Chattanoogalocation not on record
2
Norfolk, US
2
Philadelphia, US
2
AUAlocation not on record
2
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
2
Pittsburg, US
2
Riverside, US
1
EL PASO, US
1
Johnson City, US
1
Williamsburg, US
1
Museum of the Rockieslocation not on record
1
Lincoln, US
1
University of Stellenboschlocation not on record
1
University of Southern Mississippilocation not on record
1
US
1
GAlocation not on record
1
SEINetlocation not on record
1
Boise, US
1
Guasave, MX
1
Canadian Department of Agriculturelocation not on record
1
Burlington, US
1
Texas Lutheran Universitylocation not on record
1
Clarksville, US
1
Maryland Department of Natural Resourceslocation not on record
1
Dekalb, US
1
Tampa, US
1
LDlocation not on record
1
Davis, US
1
Allentown, US
1
Provo, US
1
Santa Barbara, US
1
LINUlocation not on record
1
67 institutions · 494 of 498 vouchered records shown · 4 without an institution code
09Environmental DNA6 detections
Where the DNA of Carex texensis 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
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 6 detections have coordinates
Open the map0 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.
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 Foundation1 languages↗
GBIFGlobal Biodiversity Information Facility607 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics6 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗