Chaptalia tomentosa, common name pineland daisy, is a plant species native to the southeastern United States. It has been reported from southern Alabama, Florida, southern Georgia, Louisiana, eastern Texas, southern Mississippi, eastern North Carolina and South Carolina. Some publications report the species from the West Indies as well,Simpson, B.B. 1978. Chaptalia. North American Flora II 10:3-7. but this is based on the assumption that C. azurensis is a synonym of C. tomentosa. Chaptalia tomentosa is type species for the genus Chaptalia, and is found in sandy soil in bogs, savannahs, and open areas in the Atlantic and Gulf coastal plain.Nesom, G. L. 1995. Revision of Chaptalia (Asteraceae: Mutisieae) from North America and continental Central America. Phytologia 78: 153–188.Flora of North America Chaptalia tomentosa is a perennial herb forming a rosette of leaves, but no underground rhizome. Leaves are elliptical, up to 25 cm long, densely gray-white to orange on the underside because of a thick coat of hairs. Ray flowers are cream-colored with a purple streak along the underside. Achenes are glabrous, up to 6 mm long with a slender hairy neck at the top 20-25% as long as the body of the achene.Correll, D. S. & M. C. Johnston. 1970. Manual of the Vascular Plants of Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.Wunderlin, R. P. 1998. Guide to the Vascular Plants of Florida i–x, 1–806. University Press of Florida, Gainesville.Godfrey, R. K. & J. W. Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States Dicotyledons 1–944. Univ. Georgia Press, Athens.Cronquist, A.J. 1980. Asteraceae. 1: i–xv, 1–261. In Vascular Flora of the Southeastern United States. The University of North Carolina Press, Chapel Hill.Florida Native Wildflowers, pineland daisySims, John, 1821. Chaptalia tomentosa, Wooly-leaved Chaptalia. Curtis's Botanical Magazine 48 t 2257.Ventenat, Etienne Pierre. 1802. Description des Plantes Nouvelles du Jardin de J. M. Cels 7: pl. 61, Chaptalia tomentosa
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 Chaptalia tomentosa has left across the world's sequence archives.
At a glance
DNA specimens3
Marker genes5
GenBank sequences5
eDNA detections2
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.
★matK2★rbcL2★rbcLa★ITS1★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualChaptalia tomentosa 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 = 48 n = 24
Ploidypolyploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 481×CCDB · eflora
CCDB · eflora
n 241×CCDB · book-ipcn66
CCDB · book-ipcn66 — S. B. Jones 1966
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy75% within 1 km
≤100 m 790≤1 km 175≤10 km 81>10 km 243
1 289 georeferenced · 296 without coordinates
Open the mapobservation + sensor1 585
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 accuracy26% within 1 km
≤100 m 10≤1 km 19≤10 km 45>10 km 39
113 georeferenced · 232 without coordinates
Open the institutions mapphysical evidence345
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 institutions35 of 49 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
66
Jena Microbial Resource Collectionlocation not on record
39
Miami, US
26
Bronx, US
23
University of Southern Mississippilocation not on record
17
Jackson, US
16
US
13
Mississippi State, US
12
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
11
Wuzhou, CN
11
Chongqing Museumlocation not on record
10
Saint Louis, US
10
Tuscaloosa, US
8
Bloomington, US
6
Tall Timbers Research Stationlocation not on record
6
Austin, US
5
Knoxville, US
5
Chapel Hill, US
4
Valdosta State Universitylocation not on record
4
Bangkok, TH
3
Asheville, US
2
University of Stellenboschlocation not on record
2
Burlington, US
2
Denver, US
2
Madison, US
2
Columbia, US
2
Fort Worth, US
2
University of South Carolina Salkehatchielocation not on record
2
AUAlocation not on record
2
Dekalb, US
1
Baltimore, US
1
Davenport, US
1
Minia, EG
1
Ann Arbor, US
1
US
1
Harrisonburg, US
1
Weymouth Woods Sandhills Nature Preservelocation not on record
1
College Park, US
1
Maryland Department of Natural Resourceslocation not on record
1
GB
1
GAlocation not on record
1
Millersville, US
1
Philadelphia, US
1
Durham, US
1
Coastal Carolina Universitylocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
San Angelo, US
1
Flagstaff, US
1
EL PASO, US
1
49 institutions · 333 of 345 vouchered records shown · 11 without an institution code
09Environmental DNA2 detections
Where the DNA of Chaptalia tomentosa 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 found2
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 2 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 median12.5 °C 12.5–12.5
Seasonal swing summer↔winter27.0 °C
Max temp (day)18.4 °C
Min temp (night)8.20 °C
Precipitation79.6 mm/mo
Air humidity57.3 %
Moisture balance-38.4 mm/mo
Vapour deficit733 Pa
Wind speed5.80 m/s
Cloud cover36.7 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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 Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 930 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics3 specimens↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗