Trixis californica , the American threefold or American trixis, is a species of flowering plant in the family Asteraceae. It is native to the southwestern United States in California, Arizona, New Mexico, and Texas, and in Mexico in the states of Baja California, Chihuahua, Coahuila, Durango, Nuevo León, Sinaloa, Sonora, Tamaulipas, and Zacatecas. Trixis californica is one of 22 species in Trixis, a genus that occurs in North America, Central America, the West Indies, northern Argentina, Uruguay, and southern Brazil.
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 Trixis californica has left across the world's sequence archives.
At a glance
DNA specimens8
Marker genes6
GenBank sequences9
eDNA detections3
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.
★matK3★rbcL3★rbcLa★ITS3★ITS2trnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB
The complete instruction manualTrixis californica 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 — Ward, D. E. 1983. Chromosome counts from New Mexico and southern Colorado. Phytologia 54: 302–309.
CCDB · ipcn-api-dl — Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686.
CCDB · ipcn-api-dl — Keil, D. J. & T. F. Stuessy. 1975. Chromosome counts of Compositae from the United States, Mexico and Guatemala. Rhodora 77: 171–195.
CCDB · ipcn-api-dl — Gallagher, M. L. & B. D. Parfitt. 1982. In IOPB chromosome number reports LXXVII. Taxon 31: 761–762.
CCDB · book-ipcn67-71 — POWELL, A.M. & s. SIKES. 1970. Chromosome numbers of some chihuahuan desert Compositae. Southw. Naturalist 15: 175-186.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy92% within 1 km
≤100 m 1 650≤1 km 225≤10 km 86>10 km 67
2 028 georeferenced · 733 without coordinates
Open the mapobservation + sensor2 761
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 accuracy74% within 1 km
≤100 m 287≤1 km 164≤10 km 129>10 km 26
606 georeferenced · 844 without coordinates
Open the institutions mapphysical evidence1 450
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 institutions55 of 79 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
ASUlocation not on record
278
San Diego, US
212
Phoenix, US
126
Riverside, US
113
Claremont, US
99
Bronx, US
79
CASlocation not on record
53
Flagstaff, US
50
EL PASO, US
38
Albuquerque, US
33
Austin, US
26
San Angelo, US
24
La Paz, MX
21
Los Angeles, US
21
Saint Louis, US
21
Hermosillo, MX
20
Ensenada, MX
19
Durango, MX
12
Guasave, MX
10
Santa Barbara, US
10
Severin-McDaniel Insect Collectionlocation not on record
9
University of Stellenboschlocation not on record
9
Arizona State University Biocollectionslocation not on record
8
San Luis Obispo, US
8
US
8
Henderson, US
7
DOI/NPS, Colonial National Historical Parklocation not on record
7
Mexico City, MX
7
Ciudad Juárez, MX
6
Giardini Botanici Hanburylocation not on record
6
Lubbock, US
6
The University of Arizonalocation not on record
6
Moscow, US
5
Arizona Western Collegelocation not on record
5
Arcata, US
5
Long Beach, US
4
Angwin, US
4
Davis, US
4
Tampa, US
4
Fort Worth, US
4
Irvine, US
3
Canadian Department of Agriculturelocation not on record
3
Bangkok, TH
3
Bloomington, US
3
BAYLUlocation not on record
3
Northridge, US
2
USFSlocation not on record
2
Mexico City, MX
2
Instituto de Ecología, Universidad Nacional Autónoma de Méxicolocation not on record
2
Provo, US
2
The Huntington Library, Art Museum, and Botanical Gardenslocation not on record
2
Mexico City, MX
2
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
2
Pocatello, US
2
WTUlocation not on record
2
Emporia, US
1
Laboratorio de Ictiologialocation not on record
1
Jena Microbial Resource Collectionlocation not on record
1
Clemson, US
1
Denver, US
1
Smithsonian Institution, National Museum of Natural Historylocation not on record
1
Kew, GB
1
San Diego Natural History Museum, Herbariumlocation not on record
1
Toronto, CA
1
Zapopan, MX
1
Stockholm, SE
1
Boise, US
1
Zacatecas, MX
1
Pullman, US
1
San Francisco, US
1
Musee des Dinosaures d'Esperaza (Aude)location not on record
1
Chongqing Museumlocation not on record
1
Chadron, US
1
Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahualocation not on record
1
San Jose, US
1
San Francisco, US
1
University of Alberta Museumslocation not on record
1
Durango, US
1
Juriquilla, MX
1
79 institutions · 1 446 of 1 450 vouchered records shown · 4 without an institution code
09Environmental DNA3 detections
Where the DNA of Trixis californica 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 found3
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 3 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 median22.4 °C 19.1–25.6
Seasonal swing summer↔winter18.5 °C
Max temp (day)28.8 °C 26.2–31.4
Min temp (night)15.8 °C 12.1–19.4
Precipitation37.5 mm/mo 19.6–55.4
Air humidity47.5 % 46.1–48.8
Moisture balance-126 mm/mo -127–-125
Vapour deficit1,454 Pa 1,205–1,704
Wind speed3.70 m/s 3.50–3.90
Cloud cover28.7 % 24.9–32.5
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 Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 211 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics8 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗