Trichoptilium is a monotypic genus containing the single species Trichoptilium incisum, which is known by the common names yellowdome and yellowhead. This is a plant in the daisy family which is native to the Mojave and Sonoran Deserts of the United States and Mexico.
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 Trichoptilium incisum has left across the world's sequence archives.
At a glance
DNA specimens4
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.
★matK1★rbcL1★rbcLa★ITS3★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualTrichoptilium incisum 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.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy91% within 1 km
≤100 m 524≤1 km 65≤10 km 31>10 km 24
644 georeferenced · 611 without coordinates
Open the mapobservation + sensor1 255
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 accuracy67% within 1 km
≤100 m 144≤1 km 99≤10 km 108>10 km 13
364 georeferenced · 380 without coordinates
Open the institutions mapphysical evidence744
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 institutions39 of 53 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
San Diego, US
146
Claremont, US
115
Riverside, US
96
ASUlocation not on record
75
Phoenix, US
40
Flagstaff, US
19
Austin, US
19
Mexico City, MX
16
Bronx, US
15
Davis, US
12
US
12
Ensenada, MX
11
La Paz, MX
10
Arcata, US
8
Santa Barbara, US
7
San Luis Obispo, US
7
Arizona State University Biocollectionslocation not on record
7
CASlocation not on record
7
University of Stellenboschlocation not on record
6
Long Beach, US
5
Wuzhou, CN
5
Severin-McDaniel Insect Collectionlocation not on record
5
DOI/NPS, Colonial National Historical Parklocation not on record
4
Canadian Department of Agriculturelocation not on record
4
Los Angeles, US
4
Angwin, US
3
Northridge, US
3
EL PASO, US
3
Saint Louis, US
3
Calabar, NG
3
Arizona Western Collegelocation not on record
3
Moscow, US
3
San Jose, US
3
Irvine, US
2
Universidad Autónoma de Guadalajaralocation not on record
2
Pocatello, US
2
DOI/NPS, Greenbelt Parklocation not on record
2
Henderson, US
2
Denver, US
2
Tampa, US
2
Frankfurt am Main
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Orem, US
1
Millersville, US
1
WTUlocation not on record
1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
1
Bangkok, TH
1
The University of Arizonalocation not on record
1
Boise, US
1
Pullman, US
1
Austin, US
1
Hermosillo, MX
1
San Francisco, US
1
53 institutions · 706 of 744 vouchered records shown · 38 without an institution code
09Environmental DNA2 detections
Where the DNA of Trichoptilium incisum 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
Desert microphyll woodland, Sandy wash
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 median18.4 °C 18.4–18.4
Seasonal swing summer↔winter19.9 °C
Max temp (day)24.1 °C
Min temp (night)12.2 °C
Precipitation20.8 mm/mo
Air humidity42.8 %
Moisture balance-128 mm/mo
Vapour deficit1,213 Pa
Wind speed3.90 m/s
Cloud cover37.8 %
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 Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 013 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics4 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↗