Polygonum minimum is a species of flowering plant in the knotweed family known by the common name broadleaf knotweed. It is native to much of western North America where it can be found in mountainous regions. It grows in the subalpine and alpine climates of high mountain ranges from Alaska to Arizona 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 Polygonum minimum has left across the world's sequence archives.
At a glance
DNA specimens5
Marker genes5
GenBank sequences5
eDNA detections3
Countries2
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★rbcL2★rbcLa★ITS2★ITS2
plant barcodefungal barcode
08Occurrence & distribution
Record type844 records
Wild obs. + sensor99
Museum / vouchered745
Range
Area of Occupancy AOO2 476 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 59≤1 km 14≤10 km 4>10 km 1
78 georeferenced · 21 without coordinates
Open the mapobservation + sensor99
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 accuracy56% within 1 km
≤100 m 49≤1 km 197≤10 km 176>10 km 17
439 georeferenced · 306 without coordinates
Open the institutions mapphysical evidence745
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 institutions49 of 70 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Corvallis, US
82
WTUlocation not on record
72
Pullman, US
49
Missoula, US
42
Moscow, US
40
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
37
Angwin, US
29
Victoria, CA
29
Arcata, US
27
Vancouver, CA
26
Claremont, US
23
Bronx, US
19
Davis, US
19
Chicago, US
19
Madison, US
17
Boise, US
14
Fredericton Stock Culture Collectionlocation not on record
14
DOI/NPS, Colonial National Historical Parklocation not on record
10
Santa Barbara, US
8
Ashland, US
7
Caldwell, US
7
Chengdu, CN
5
Pocatello, US
4
Bozeman, US
4
University of Lethbridgelocation not on record
4
Los Angeles, US
4
Riverside, US
4
San Francisco, US
3
San Diego, US
3
Denver, US
3
Northridge, US
3
San Luis Obispo, US
3
ASUlocation not on record
3
CASlocation not on record
3
Awka, NG
2
STNFlocation not on record
2
Anchorage, US
2
Bloomington, US
2
Tacoma, US
2
DOI/NPS, Mount Rainier National Parklocation not on record
2
Truckee, US
2
University of Alberta Museumslocation not on record
2
University of Stellenboschlocation not on record
2
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
2
Chongqing Museumlocation not on record
2
US
2
University of British Columbialocation not on record
1
Logan, US
1
Montréal, CA
1
Canadian Department of Agriculturelocation not on record
1
MeiseBGlocation not on record
1
Minia, EG
1
Pittsburg, US
1
San Jose, US
1
Wellington, NZ
1
Phoenix, US
1
Whitehorse, CA
1
Fort Worth, US
1
Tampa, US
1
DOI/NPS, Greenbelt Parklocation not on record
1
Henderson, US
1
Research Collection of B. A. Bennettlocation not on record
1
Mississippi State, US
1
Musee des Dinosaures d'Esperaza (Aude)location not on record
1
HJAEFlocation not on record
1
Severin-McDaniel Insect Collectionlocation not on record
1
US
1
Flagstaff, US
1
Brookings, US
1
St. Paul, US
1
70 institutions · 684 of 745 vouchered records shown · 61 without an institution code
09Environmental DNA3 detections
Where the DNA of Polygonum minimum 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 median15.1 °C 13.0–17.2
Seasonal swing summer↔winter16.2 °C
Max temp (day)20.9 °C 19.4–22.3
Min temp (night)10.7 °C 7.70–13.6
Precipitation50.5 mm/mo 45.0–56.0
Air humidity58.6 % 58.3–58.9
Moisture balance-76.0 mm/mo -76.3–-75.6
Vapour deficit723 Pa 624–823
Wind speed2.30 m/s 1.60–3.10
Cloud cover35.0 % 34.2–35.8
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 Facility844 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics5 specimens↗
NCBIUS National Library of Medicinesequences↗
Open Tree of LifeOpenTreephylogeny backbone↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗