Carex lupuliformis, common name false hop sedge, is a perennial sedge of sporadic distribution found in the floodplain forests and ephemeral woodland ponds of central and eastern North America. The species typically produces four to seven leaves with sheaths of distal leaves of 3 to 21 cm whose ligules are rounded to triangular. Carex lupuliformis blooms between early June and early October, typically with "two to six proximal female spikes, distal spikes usually crowded, ascending, densely flowered, usually cylindric, much longer than broad; one to two terminal male spikes." Fruiting occurs between late July through early October. Fruit is described as "perigynia ascending to spreading, inflated, strongly veined, sessile, lance-ovoid, shiny, glabrous; beak conical; achenes stipitate, broadly diamond-shaped, scarcely if at all longer than wide, concave faces, angles thickened, prominently knobbed with hard, nipplelike points."
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 lupuliformis has left across the world's sequence archives.
At a glance
DNA specimens5
Marker genes3
GenBank sequences10
eDNA detections5
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.
★matK7★rbcLa★ITS3
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualCarex lupuliformis 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 = 60 n = 30
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 601×CCDB · book-ipcn73-74
CCDB · book-ipcn73-74 — REZNICEK, A.A., & P.W. BALL. 1974. The taxonomy of Carex series Lupulina in Canada. Canad. J. Bot. 52: 2387-2399.
08Occurrence & distribution
Record type715 records
Wild obs. + sensor162
Museum / vouchered553
Origin
Native1
Range
Area of Occupancy AOO1 988 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 accuracy47% within 1 km
≤100 m 55≤1 km 5≤10 km 2>10 km 67
129 georeferenced · 33 without coordinates
Open the mapobservation + sensor162
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 accuracy44% within 1 km
≤100 m 18≤1 km 45≤10 km 63>10 km 18
144 georeferenced · 409 without coordinates
Open the institutions mapphysical evidence553
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 institutions40 of 65 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Tampa, US
106
Bronx, US
65
Jena Microbial Resource Collectionlocation not on record
41
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
22
Jackson, US
21
Montréal, CA
20
Saint Louis, US
19
Ann Arbor, US
19
Chicago, US
19
Oregon State Universitylocation not on record
18
Burlington, US
15
Chapel Hill, US
12
Little Rock, US
11
Fort Worth, US
10
Wuzhou, CN
8
University of Stellenboschlocation not on record
7
Québec, CA
6
Austin, US
6
Columbia, US
5
New Haven, US
5
San Angelo, US
5
International Salmonella Centre (W.H.O.)location not on record
4
BAYLUlocation not on record
3
Mohonk Preservelocation not on record
3
Tall Timbers Research Stationlocation not on record
3
US
3
Fayetteville, US
3
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
3
Valdosta State Universitylocation not on record
3
Dekalb, US
2
University of Tennessee at Chattanoogalocation not on record
2
Elikins, US
2
Bangkok, TH
2
EL PASO, US
2
Pullman, US
2
St. Paul, US
2
DOI/NPS, Greenbelt Parklocation not on record
2
WTUlocation not on record
2
AUAlocation not on record
2
Chongqing Museumlocation not on record
2
Dover, US
2
Longwood Universitylocation not on record
2
Delaware State University, Claude E. Phillips Herbariumlocation not on record
2
Chicago, US
2
Mississippi State, US
1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
1
Paris, FR
1
Fairfax, US
1
University of Wisconsinlocation not on record
1
Auckland, NZ
1
Montréal, CA
1
Knoxville, US
1
Pittsburg, US
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
US
1
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
1
Morgantown, US
1
Whitewater, US
1
Bloomington, US
1
Long Beach, US
1
Acadia Universitylocation not on record
1
University of Southern Mississippilocation not on record
1
Maryland Department of Natural Resourceslocation not on record
1
Guasave, MX
1
DOI/NPS, Selma to Montgomery National Historic Traillocation not on record
1
65 institutions · 516 of 553 vouchered records shown · 37 without an institution code
09Environmental DNA5 detections
Where the DNA of Carex lupuliformis 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 found5
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 5 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 median26.0 °C 25.2–26.8
Seasonal swing summer↔winter19.9 °C
Max temp (day)29.9 °C 28.4–31.3
Min temp (night)22.7 °C 22.3–23.1
Precipitation147 mm/mo 122–172
Air humidity60.9 % 60.3–61.6
Moisture balance-16.9 mm/mo -34.1–0.3
Vapour deficit1,313 Pa 1,268–1,357
Wind speed2.60 m/s 2.40–2.80
Cloud cover31.0 % 30.8–31.3
CHELSA 1981–2010, ~9 km grid, at location & month of 2 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 Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility715 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI5 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics5 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗