Krigia dandelion, known as potato dwarfdandelion, is a North American species of plants in the family Asteraceae. It is native to the southeastern and south-central United States, from the Florida Panhandle to Texas and north as far as Kansas, southern Illinois, and MarylandBiota of North America Program 2014 county distribution map Krigia dandelion is an perennial herb up to 50 cm (20 inches) tall. One plant generally produces one flower head per flower stalk, each head with 25–34 yellow or yellow-orange ray flowers but no disc flowers.Flora of North America, Krigia dandelion (Linnaeus) Nuttall, Potato dwarfdandelion or dandelion
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 Krigia dandelion has left across the world's sequence archives.
At a glance
DNA specimens8
Marker genes4
eDNA detections4
Countries1
Marker genes sequenced
★ 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.
★rbcL★rbcLa★ITS★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualKrigia dandelion 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.
CCDB · ipcn-api-dl — Chinnappa, C. C. 1981. Cytological studies in Krigia (Asteraceae). Canad. J. Genet. Cytol. 23: 67 1 –678.
CCDB · eflora
n 303×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Kim, K. J. & T. J. Mabry. 1991. Phylogenetic and evolutionary implications of nuclear ribosomal DNA variation in dwarf dandelions (Krigia, Lactuceae, Asteraceae). Pl. Syst. Evol. 177: 53–69.
CCDB · ipcn-api-dl — Kim, K. J. & B. L. Turner. 1992. Systematic overview of Krigia (Asteraceae---Lactuceae). Brittonia 44(2): 173–198.
CCDB · ipcn-api-dl — Kim, K. J., B. L. Turner & R. K. Jansen. 1992. Phylogenetic and evolutionary implications of interspecific chloroplast DNA variation in Krigia (Asteraceae---Lactuceae). Syst. Bot. 17: 449–469.
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 accuracy81% within 1 km
≤100 m 606≤1 km 85≤10 km 36>10 km 127
854 georeferenced · 167 without coordinates
Open the mapobservation + sensor1 021
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 accuracy42% within 1 km
≤100 m 46≤1 km 61≤10 km 115>10 km 35
257 georeferenced · 278 without coordinates
Open the institutions mapphysical evidence535
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 institutions54 of 72 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
47
Saint Louis, US
36
Emporia, US
33
Fort Worth, US
32
University of Stellenboschlocation not on record
29
Bangkok, TH
22
Austin, US
22
Jackson, US
21
Bronx, US
21
Bloomington, US
20
Pittsburg, US
19
Fayetteville, US
18
Chapel Hill, US
14
Chongqing Museumlocation not on record
14
Williamsburg, US
14
Tuscaloosa, US
14
Mississippi State, US
14
US
12
DOI/NPS, Mississippi National River & Recreation Arealocation not on record
9
University of Southern Mississippilocation not on record
6
Little Rock, US
6
Columbia, US
6
Knoxville, US
6
GAlocation not on record
5
China Agricultural Universitylocation not on record
5
Edmonton, CA
5
Clemson, US
4
Conway, US
4
Conway, US
4
Jena Microbial Resource Collectionlocation not on record
4
Mount Berry, US
4
DOI/NPS, Selma to Montgomery National Historic Traillocation not on record
4
GB
4
Tampa, US
3
Burlington, US
3
Provo, US
2
Lubbock, US
2
Russellville, US
2
Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record
2
Pondicherry, IN
2
BAYLUlocation not on record
2
EL PASO, US
2
University of Guelph, OAC Herbariumlocation not on record
2
San Angelo, US
1
Boise, US
1
Baltimore, US
1
Long Beach, US
1
Miami, US
1
Western Carolina Universitylocation not on record
1
Norfolk, US
1
Kirksville, US
1
Lincoln, US
1
Northridge, US
1
Turlock, US
1
Taipei, TW
1
University of Tennessee at Chattanoogalocation not on record
1
Minia, EG
1
Fairfax, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
College Park, US
1
Jefferson City, US
1
Valdosta State Universitylocation not on record
1
Madison, US
1
James F. Matthews Center for Biodiversity Studieslocation not on record
1
New Brunswick, US
1
Due West, US
1
Springfield, US
1
MILlocation not on record
1
AUAlocation not on record
1
Dover, US
1
Pocatello, US
1
Dekalb, US
1
72 institutions · 529 of 535 vouchered records shown · 6 without an institution code
09Environmental DNA4 detections
Where the DNA of Krigia dandelion 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 found4
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 4 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 median4.00 °C -3.20–11.2
Seasonal swing summer↔winter26.4 °C
Max temp (day)9.10 °C 1.40–16.7
Min temp (night)-1.00 °C -8.20–6.20
Precipitation73.9 mm/mo 65.7–82.1
Air humidity58.4 % 56.0–60.7
Moisture balance-5.80 mm/mo -35.5–24.0
Vapour deficit417 Pa 216–619
Wind speed4.50 m/s 4.30–4.70
Cloud cover48.5 % 45.5–51.5
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 Foundation2 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 557 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI4 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics8 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗