Epilobium clavatum is a species of flowering plant in the evening primrose family known by the common names talus willowherb and clavatefruit willowherb. It is native to western North America from Alaska to northern California to Colorado, where it grows in rocky high mountain habitat such as talus. It is a clumping perennial herb forming bristly mounds up to about 20 centimeters high and spreading outward via tough stolons. The oval-shaped leaves are 1 to 3 centimeters long. The inflorescence is an erect raceme of flowers, each with four small pink petals. The fruit is a capsule up to 4 centimeters long.
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 Epilobium clavatum has left across the world's sequence archives.
At a glance
DNA specimens4
Marker genes4
GenBank sequences2
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.
★rbcL1★rbcLa★ITS1★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manualEpilobium clavatum 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 = 36 n = 18
Ploidydiploid inferred
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
n 182×CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Seavey, S. R. & P. H. RAVEN. 1977a. Chromosome evolution in Epilobium sect. Epilobium (Onagraceae), II. Pl. Syst. Evol. 128: 195–200.
CCDB · ipcn-api-dl — Seavey, S. R. & P. H. RAVEN. 1978. Chromosomal evolution in Epilobium sect. EpilobIum (Onagraceae) III. Pl. Syst. Evol. 130: 79–83.
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 accuracy91% within 1 km
≤100 m 18≤1 km 3>10 km 2
23 georeferenced · 16 without coordinates
Open the mapobservation + sensor39
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 accuracy58% within 1 km
≤100 m 45≤1 km 123≤10 km 102>10 km 20
290 georeferenced · 259 without coordinates
Open the institutions mapphysical evidence549
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 52 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
95
Pullman, US
63
Victoria, CA
54
Moscow, US
45
Missoula, US
43
Corvallis, US
32
Chicago, US
23
Madison, US
16
Orem, US
14
Vancouver, CA
14
DOI/NPS, Colonial National Historical Parklocation not on record
13
Claremont, US
9
Boise, US
8
Rocky Mountain Biological Laboratorylocation not on record
7
Caldwell, US
7
DOI/NPS, Mount Rainier National Parklocation not on record
7
Musee des Dinosaures d'Esperaza (Aude)location not on record
6
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
6
Pocatello, US
6
ASUlocation not on record
6
Logan, US
5
Bronx, US
5
Flagstaff, US
4
Bozeman, US
3
Provo, US
3
Chongqing Museumlocation not on record
3
Davis, US
3
Northridge, US
3
University of Alberta Museumslocation not on record
3
Durango, US
3
Albuquerque, US
3
Arcata, US
3
Research Collection of B. A. Bennettlocation not on record
2
Pittsburg, US
2
Angwin, US
2
Bloomington, US
1
Université Lavallocation not on record
1
KNFYlocation not on record
1
Whitehorse, CA
1
Cheney, US
1
Wuzhou, CN
1
San Francisco, US
1
Riverside, US
1
CASlocation not on record
1
Anchorage, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
Henderson, US
1
Bangkok, TH
1
San Luis Obispo, US
1
Institut und Museum fuer Geologie und Palaeontologielocation not on record
1
Denver, US
1
Canadian Department of Agriculturelocation not on record
1
52 institutions · 538 of 549 vouchered records shown · 11 without an institution code
09Environmental DNA2 detections
Where the DNA of Epilobium clavatum 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
alpine, roadside
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 median9.60 °C 7.20–11.9
Seasonal swing summer↔winter19.2 °C
Max temp (day)14.3 °C 9.80–18.8
Min temp (night)5.40 °C 4.20–6.60
Precipitation77.4 mm/mo 59.4–95.4
Air humidity59.4 % 56.3–62.4
Moisture balance-49.7 mm/mo -70.2–-29.2
Vapour deficit501 Pa 389–614
Wind speed4.20 m/s 3.70–4.70
Cloud cover37.6 % 34.8–40.3
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.