Pilosella tristis (synonym Hieracium triste) is a North American species of flowering plant known by the common name woolly hawkweed. It is widespread across western Canada and the western United States from Alaska, Yukon, and Northwest Territories south as far as California and New Mexico.Biota of North America Program 2014 state-level distribution map
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 Hieracium triste has left across the world's sequence archives.
At a glance
DNA specimens21
Marker genes3
eDNA detections10
Countries2
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.
★matK★rbcLa★ITS2
plant barcodefungal barcode
06Genome at a glanceGoaT
The complete instruction manualHieracium triste 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.
Ploidy2× diploid · measured
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
diploid1×GIFT · GIFT (floras)
GIFT · GIFT (floras)
08Occurrence & distribution
Record type1 187 records
Wild obs. + sensor492
Museum / vouchered695
Origin
Native1
Range
Area of Occupancy AOO3 652 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 accuracy94% within 1 km
≤100 m 281≤1 km 59≤10 km 15>10 km 8
363 georeferenced · 129 without coordinates
Open the mapobservation + sensor492
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 accuracy52% within 1 km
≤100 m 54≤1 km 123≤10 km 149>10 km 15
341 georeferenced · 354 without coordinates
Open the institutions mapphysical evidence695
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 institutions36 of 57 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
WTUlocation not on record
115
Pullman, US
96
Victoria, CA
63
Musee des Dinosaures d'Esperaza (Aude)location not on record
45
University of Alberta Museumslocation not on record
35
Moscow, US
32
Moscow State Universitylocation not on record
30
Vancouver, CA
22
DOI/NPS, Mount Rainier National Parklocation not on record
19
Denver, US
19
Anchorage, US
16
Provo, US
14
Boise, US
13
Arcata, US
11
Caldwell, US
10
Albuquerque, US
10
St. Paul, US
7
Research Collection of B. A. Bennettlocation not on record
7
Davis, US
6
Durango, US
6
University of Stellenboschlocation not on record
5
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
4
Bronx, US
4
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
4
Orem, US
4
Whitehorse, CA
3
CASlocation not on record
3
Kew, GB
3
DOI/FWS, Kenai National Wildlife Refugelocation not on record
3
Pocatello, US
2
Northridge, US
2
New Mexico Museum of Natural History and Sciencelocation not on record
2
Bangkok, TH
2
Corvallis, US
2
Pittsburg, US
2
Yukon Universitylocation not on record
2
Montréal, CA
2
San Luis Obispo, US
2
Stockholm, SE
1
Truckee, US
1
University of British Columbia, Herbariumlocation not on record
1
DOI/NPS, Greenbelt Parklocation not on record
1
Saint Louis, US
1
San Diego, US
1
Canadian Department of Agriculturelocation not on record
1
Canadian Museum of Naturelocation not on record
1
Davenport, US
1
Portland, US
1
Spearfish, US
1
Riverside, US
1
Rocky Mountain Biological Laboratorylocation not on record
1
Knoxville, US
1
KNFSClocation not on record
1
University of British Columbialocation not on record
1
San Jose, US
1
Flagstaff, US
1
Severin-McDaniel Insect Collectionlocation not on record
1
57 institutions · 646 of 695 vouchered records shown · 49 without an institution code
09Environmental DNA10 detections
Where the DNA of Hieracium triste 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 found10
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
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 median11.2 °C 8.50–13.2
Seasonal swing summer↔winter28.0 °C
Max temp (day)16.3 °C 11.1–19.2
Min temp (night)6.30 °C 4.10–8.50
Precipitation77.6 mm/mo 49.8–132
Air humidity59.2 % 55.6–63.9
Moisture balance-8.10 mm/mo -57.9–25.3
Vapour deficit543 Pa 403–681
Wind speed2.90 m/s 1.70–4.50
Cloud cover42.8 % 37.5–47.0
CHELSA 1981–2010, ~9 km grid, at location & month of 10 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 Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 187 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI10 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics21 specimens↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
giftgenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗