Polygonum plebeium
R.Br. · speciesAt a glance
Occurrence records4 412
Data sources11
Biological traits42
DNA specimens25
eDNA detections18
Sources11 archives
Databases and archives Polygonum plebeium's data was compiled from.
WikipediaWikimedia Foundation14 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 412 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI18 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics25 specimens↗
dukesphytochemcompounds
LOTUSNatural Products (Wikidata)compounds↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗On this page7 sections
Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
NarrativeWikipediaarticle
Traits & measurements4 literature sources42 traits
Chemical compositionDukesPhytochem · LOTUS34 compounds
Occurrence & distributionGBIF4 412 records
Environmental DNA1 datasets · 7 countries18 detections
DNA & barcodingBOLD25 specimens
Genome at a glanceCCDB2n = 60
01Narrative
Polygonum plebeium, the common knotweed, is a species of flowering plant in the knotweed family, found natively throughout much of South Asia including India, in Madagascar, and introduced to the United States and Australia. It occurs in disturbed habitats that frequently are flooded, such as banks, ditches, and rice fields. It is used as a vegetable in food in some locations.
No narrative description available for this taxon yet.
02Traits & measurements
SourcesWCVPGIFTAusTraitsTRY
Size & morphology16
Fruit length1.5 mm
⚠ sources differ — AusTraits: 1.5 mm · GIFT: 1.88 mm
Fruit length max2 mm
Fruit length min1.5 mm
Fruit width0.65 mm
Leaf length9 mm
⚠ sources differ — AusTraits: 9 mm · GIFT: 10 mm
Leaf length max20 mm
Leaf length min3 mm
Leaf width1.5 mm
⚠ sources differ — AusTraits: 1.5 mm · GIFT: 1 mm
Leaf width max4 mm
Leaf width min1 mm
Plant height0.2 m
⚠ sources differ — GIFT: 0.2 m · AusTraits: 0.05 m
Plant height max0.44 m
Plant height min0.05 m
Seed mass0.427 mg
⚠ sources differ — TRY: 0.427 mg · AusTraits: 0.589 mg · GIFT: 0.413 mg
Seed mass max0.64 mg
Seed mass min0.16 mg
Life cycle & reproduction9
Dehiscenceindehiscent
Dispersal typewind
Flowering timennnnnyyyyyyn
Life formannual or perennial
Life spanannual
Pollination syndromeinsect
Raunkiær life formtherophyte
Resprouting capacityfire_killed
Sex typehermaphrodite
Diet & foraging1
Parasiteindependent
Habitat & environment13
Aquaticterrestrial
Climateseasonally dry tropical
Climberself-supporting
Elevation max3 000 m
Elevation mean1 115 m
Elevation min20 m
Epiphyteterrestrial
Fruit fleshinessdry
Fruit typenut
⚠ sources differ — AusTraits: nut · GIFT: achene
Growth formherb
Leaf compoundnesssimple
Leaf shapenarrowly_elliptical narrowly_oblong
Woodinessnon-woody
Physiology & chemistry2
Nitrogen fixingnon_nitrogen_fixer
Photosynthetic pathwayC3
Other traits1
Plant support typefree-standing
03Chemical composition34 compounds
Compounds documented for Polygonum plebeium across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
💊 Medicinal use documented
Compound class profile5 classes
Flavonols12
Simple phenolic acids4
Cinnamic acids and derivatives4
Flavones2
Oleanane triterpenoids1
Documented compounds34 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| BETULINIC-ACID | 75 ppm | DukesPhytochem |
05DNA & barcoding25 specimens
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 plebeium has left across the world's sequence archives.
At a glance
DNA specimens25
Marker genes5
eDNA detections18
Countries9
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★rbcL★rbcLa★ITS★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB
The complete instruction manual Polygonum plebeium 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 = 60 n = 30
Ploidypolyploid inferred
Chromosome records10–602n range60median60mode81records
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 6047×CCDB · slov-fl · CCDB · croinout · CCDB · brit-fl +12
CCDB · slov-fl — Májovský J. et al., 1974b: Index of chromosome numbers of Slovakian flora Part 4. - Acta Fac. Rerum Nat. Univ. Comen., Bot. 23: 1-23.
CCDB · croinout — Arohonka, T. 1982
CCDB · croinout — Nishikawa, T. 1985
CCDB · croinout — Wolf, S. J. & J. McNeill 1987
CCDB · croinout — Majovsky, J. et al. 1974
CCDB · brit-fl — Styles, B.T. Watsonia 5: 177-214 (1962)
CCDB · iber-fl — Nmeros cromossmicos para a flora portuguesa, 64-85. Queirs, M.Bol. Soc. Brot. ser. 256: 79-98(1983).
CCDB · nw-europe-fl — http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=2020
CCDB · fl-europaea — Styles , 1962
CCDB · poland — Krzak J. 1982. Chromosome numbers within Polygonum aviculare L. s.l. from Poland. Acta Biol. Cracov. Ser. Bot. 24, 1-10.
CCDB · book-ipcn65 — Mertens & R. 1965
CCDB · ipcn-api-dl — Arohonka, T. 1982. Chromosome counts of vascular plants of the island Seili in Nauvo, southwestern Finland. Turun Yliopiston Julkaisuja, Sar. A 2, Biol.-Geogr. 3: 1–12.
CCDB · ipcn-api-dl — Queiros, M. 1983a. Números cromossómicos para a Flora Portugesa, 64-85. Bol. Soc. Brot. 56: 79–98.
CCDB · ipcn-api-dl — Nishikawa, T. 1985. Chromosome counts of flowering plants of Hokkaido (9). J. Hokkaido Univ. Educ., Sect. 2B 36: 25–40.
CCDB · ipcn-api-dl — Baltisberger, M. 1987. Chromosomenzahlen einiger Pflanzen aus Albanien. Ber. Geobot. Inst. ETH Stiftung Rübel 53: 47–63.
CCDB · ipcn-api-dl — Krzak, J. 1982. Chromosome numbers within Polygonum aviculare L. s.l. from Poland. Acta Biol. Cracov., Ser. Bot. 24: 1–10.
CCDB · ipcn-api-dl — Wolf, S. J. & J. McNeill. 1987. Cytotaxonomic studies on Polygonum section Polygonum in eastern Canada and the adjacent United States. Canad. J. Bot. 65: 647–652.
CCDB · ipcn-api-dl — Runemark, H. 1996. Mediterranean chromosome number reports 6 (590--678). Fl. Medit. 6: 223–243.
CCDB · book-ipcn66 — Love & Ritchie 1966; Zhukova 1966
CCDB · book-ipcn73-74 — LEE, Y.N. 1972. Chromosome number of flowering plants in Korea (4). J. Korean Res. Inst. Better Living 8: 41-51.
CCDB · book-ipcn73-74 — MAJOVSKY, J., ET AL. 1974. Index of chromosome numbers of Slovakian Flora. (Part 4). Acta Fac. Rerum Nat. Univ. Comenianae Bot. 23: 1-23.
CCDB · eflora
CCDB · Cave1956 — Love & Love a
CCDB · Cave1956 — Love & Love b
CCDB · Cave1962 — Doida 1962; Styles 1962
CCDB · CromoCat 2015 — Arohonka, T. (1982). Kromosomilukumäärityksiä Nauvon Seilin saaren putkilokasveista. (Chromosome counts of vascular plants of the island Seiliin Nauvo, SW Finland) Turun Yliopiston Biologian Laitoksen Julkaisuja 3: 1-12.
CCDB · CromoCat 2015 — Baltisberger, M. (1987b). Chromosomenzahlen einiger Labiaten aus Albanien. Ber. Geobot. Inst. E.T.H. Stiftung Rübel 57: 165-181.
CCDB · CromoCat 2015 — Baltisberger, M. (1987c). Chromosomenzahlen einiger Pflanzen aus Albanien. Ber. Geobot. Inst. E.T.H. Stiftung Rübel 53: 47-63.
CCDB · CromoCat 2015 — Doida, Y. (1960a). Cytological studies in Polygonum and related genera. I. Bot. Mag., Tokyo 37: 337-340.
CCDB · CromoCat 2015 — Doida, Y. (1960b). Cytological studies in Polygonum. I. Chromosome numbers in the genus Polygonum and related genera. Natl. Inst. Genet. (Japan), Ann. Rep. 10: 82-83.
CCDB · CromoCat 2015 — Löve, A. & Löve, D. (1956c). Chromosomes and taxonomy of eastern North American Polygonum. Canad. J. Bot. 34: 501-521.
CCDB · CromoCat 2015 — Löve, A. & Ritchie, J. C. (1966). Chromosome numbers from central northern Canada. Canad. J. Bot. 44: 429-439.
CCDB · CromoCat 2015 — Nishikawa, T. (1985). Chromosome counts of flowering plants of Hokkaido (9) Journal of Hokkaido University of Education : Section IIB 36: 25-40
CCDB · CromoCat 2015 — Queirós, M. (1983b). Números cromossómicos para a flora portuguesa, 64-85. Bol. Soc. Brot. 56: 79-98.
CCDB · CromoCat 2015 — Scholz, H. (1960). Bestimmungsschüssel für die sammelart Polygonum aviculare L. Verh. Bot. Vereins Prov. Brandenburg 98/100: 180-182.
CCDB · CromoCat 2015 — Styles, B. T. (1959a). Polygonum aviculare in Britain. Proc. Bot. Soc. Brit. Isles 3: 336.
CCDB · CromoCat 2015 — Styles, B. T. (1959b). The taxonomy of the British knotgrasses. Brit. Ecol. Soc. 1959: 48-54.
CCDB · CromoCat 2015 — Styles, B. T. (1960). Taxonomical and cytological studies in the genus Polygonum. Oxford
CCDB · CromoCat 2015 — Wolf, S. J. & J. Mcneill. (1987). Cytotaxonomic studies on Polygonum section Polygonum in easthern Canada and the adjacent United States. Canad. J. Bot. 65: 647-652.
CCDB · CromoCat 2015 — Hindakova, M. (1974). Index of chromosome numbers of Slovakian flora. (Part 4). Acta Fac. Rerum Nat. Univ. Comenianae, Bot. 23: 1-23.
+2 more references
2n 4024×CCDB · croinout · CCDB · poland · CCDB · ipcn-api-dl +3
CCDB · croinout — Wolf, S. J. & J. McNeill 1987
CCDB · poland — Skali?ska M., Ma?ecka J., Izmai?ow R. et al. 1974. Further studies in chromosome numbers of Polish Angiosperms. Tenth contribution. Acta Biol. Cracov. Ser. Bot. 17, 133-163.
CCDB · poland — Krzak J. 1982. Chromosome numbers within Polygonum aviculare L. s.l. from Poland. Acta Biol. Cracov. Ser. Bot. 24, 1-10.
CCDB · ipcn-api-dl — Krzak, J. 1982. Chromosome numbers within Polygonum aviculare L. s.l. from Poland. Acta Biol. Cracov., Ser. Bot. 24: 1–10.
CCDB · ipcn-api-dl — Probatova, N. S. & A. P. Sokolovskaya. 1989. Chromosome numbers in vascular plants from Primorye Territory, the Amur region, Sakhalin, Kamchatka and the Kuril Islands. Bot. Žhurn. (Moscow & Leningrad) 74: 120–123.
CCDB · ipcn-api-dl — Albers, F. & R. Wisskirchen. 1998. In R. Wisskirchen & H. Haeupler, Standardliste der Farn- und Blütenpflanzen Deutschlands. Bundesamt für Naturschutz & Verlag Eugen Ulmer, Stuttgart.
CCDB · ipcn-api-dl — Meerts, P., T. Baya & C. Lefèbvre. 1998. Allozyme variation in the annual weed species complex Polygonum aviculare (Polygonaceae) in relation to ploidy level and colonizing ability. Pl. Syst. Evol. 211: 239–256.
CCDB · ipcn-api-dl — Lövkvist, B. & U. M. Hultgård. 1999. Chromosome numbers in south Swedish vascular plants. Opera Bot. 137: 1–42.
CCDB · kew — Marie D, Brown SC. 1993. A cytometric exercise in plant DNA histograms, with 2C values for 70 species. Biological Cell 78: 41-51.
CCDB · Cave1956 — Love & Love a
CCDB · Cave1956 — Love & Love b
CCDB · CromoCat 2015 — Siljak-Yakovlev, S., Pustahija, F., Šoli?, E.M., Boguni?, F., Muratovi?, E., Baši?, N., Catrice, O. & S. C. Brown. (2010). Towards a Genome Size and Chromosome Number Database of Balkan Flora: C-Values in 343 Taxa with Novel Values for 242 Advanced Scienc
CCDB · CromoCat 2015 — Wolf, S. J. & J. Mcneill. (1987). Cytotaxonomic studies on Polygonum section Polygonum in easthern Canada and the adjacent United States. Canad. J. Bot. 65: 647-652.
CCDB · CromoCat 2015 — Löve, A. & Löve, D. (1956b). Cytotaxonomical conspectus of the Icelandic flora. Acta Horti Gothob. 20(4): 65-291.
CCDB · CromoCat 2015 — Lövkvist, B. & Hultgård, U.-M. (1999). Chromosome numbers in south Swedish vascular plants Opera botanica 137: 1-42
CCDB · CromoCat 2015 — Meerts, P., T. Baya & C. Lefèbvre (1998). Allozyme variation in the annual weed species complex Polygonum aviculare (Polygonaceae) in relation to ploidy level and colonizing ability Plant Systematics and Evolution 211: 239-256
2n 205×CCDB · ipcn-api-dl · CCDB · eflora · CCDB · Cave1956
CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Bir, S. S. & M. Sidhu. 1980. Cyto-palynological studies on weed flora of cultivable lands of Patiala district (Punjab). J. Palynol. 16: 85–105.
CCDB · ipcn-api-dl — Probatova. 2006. Chromosome numbers of plants of the Primorsky Territory, the Amur River basin and Magadan region. Bot. Žhurn. (Moscow & Leningrad) 91(3): 491–509.
CCDB · eflora
CCDB · Cave1956 — Love & Love a
2n 224×CCDB · croinout · CCDB · ipcn-api-dl · CCDB · CromoCat 2015
CCDB · croinout — Kartashova, N.N., L.A. Malakhova, Koslova & N.A. Dubrova.
CCDB · croinout — Kartashova, N.N., L.A. Malakhova, Koslova & N.A. Dubrova. 1974
CCDB · ipcn-api-dl — Kartashova, N. N., L. A. MALAKHOVA, Koslova & N. A. Dubrova. 1974. Chisla chromosom u rjada polesnykh rastenij is prirodnykh populjacij flory Priob'ja. Biol. Biofis. Tomsk. 47–53.
CCDB · CromoCat 2015 — Kartashova, N. N., Malakhova, L. A., Koslova, A. A. & Dubrova, N. A. (1974b). Chisla chromosom u rjada polesnykh rastenij is prirodnykh populjacij flory Priob'ja. Biol. Biofis. Tomsk 47-53.
2n 101×CCDB · book-ipcn75-78
CCDB · book-ipcn75-78 — Sarkar et al. 1977a
n 207×CCDB · croinout · CCDB · ipcn-api-dl · CCDB · CromoCat 2015
CCDB · croinout — Taylor, R. L. & Mulligan, G. A. 1968
CCDB · croinout — Galland, N. 1988
CCDB · ipcn-api-dl — Galland, N. 1988. Recherche sur l'origine de la flore orophile du Maroc étude caryologique et cytogéographique. Trav. Inst. Sci. Univ. Mohammed V, Sér. Bot. 35: 1–168.
CCDB · CromoCat 2015 — Galland, N. (1988). Recherche sur l'origine de la flore orophile du Maroc: Étude caryologique et cytogéographique. Trav. Inst. Scientifique Rabat, sér. Bot. 35: 1-168.
CCDB · CromoCat 2015 — Hämet-Ahti, L. & Virrankoski, V. (1970). Chromosome numbers of some vascular plants of north Finland. Ann. Bot. Fenn. 7: 177-181.
CCDB · CromoCat 2015 — Khatoon, S. & Ali, S. I. (1993). Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi
CCDB · CromoCat 2015 — Taylor, R. L. & G. A. Mulligan. (1968). Flora of the Queen Charlotte Island. Part 2. Cytologiacl aspects of the Vascular Plants. Queen's Printer Ottawa
n 103×CCDB · ipcn-api-dl · CCDB · CromoCat 2015
CCDB · ipcn-api-dl
CCDB · ipcn-api-dl — Bir, S. S. & M. Sidhu. 1980. Cyto-palynological studies on weed flora of cultivable lands of Patiala district (Punjab). J. Palynol. 16: 85–105.
CCDB · CromoCat 2015 — Khatoon, S. & Ali, S. I. (1993). Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi
n 303×CCDB · croinout · CCDB · CromoCat 2015
CCDB · croinout — Taylor, R. L. & Mulligan, G. A. 1968
CCDB · CromoCat 2015 — Khatoon, S. & Ali, S. I. (1993). Chromosome Atlas of the Angiosperms of Pakistan. Department of Botany, University of Karachi, Karachi
CCDB · CromoCat 2015 — Taylor, R. L. & G. A. Mulligan. (1968). Flora of the Queen Charlotte Island. Part 2. Cytologiacl aspects of the Vascular Plants. Queen's Printer Ottawa
n 401×CCDB · croinout
CCDB · croinout — Wolf, S. J. & J. McNeill 1987
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
polyploid inferred1×PloiDB · genus-scale
PloiDB · genus-scale — chromEvol; reliability=1.000 ↗
08Occurrence & distribution
Record type4 412 records
Wild obs. + sensor2 201
Museum / vouchered2 153
Other58
Origin
Native436
Introduced4
Range
Area of Occupancy AOO9 484 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 accuracy93% within 1 km
≤100 m 1 506≤1 km 143≤10 km 82>10 km 38
1 769 georeferenced · 432 without coordinates
Open the mapobservation + sensor2 201
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 accuracy43% within 1 km
≤100 m 208≤1 km 136≤10 km 342>10 km 105
791 georeferenced · 1 362 without coordinates
Open the institutions mapphysical evidence2 153
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 institutions61 of 130 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Beijing, CN | 178 |
| Adelaide, AU | 174 |
| Museo Entomologico de Leonlocation not on record | 158 |
| Brisbane, AU | 145 |
| Pretoria, ZA | 121 |
| Mount Annan, AU | 92 |
| Taipei, TW | 85 |
| Kunming, CN | 74 |
| Yangling, CN | 71 |
| Nanjing, CN | 70 |
| Canberra, AU | 67 |
| Palmerston, AU | 64 |
| Taipei, TW | 53 |
| Guangzhou, CN | 48 |
| Siouxland Heritage Museumlocation not on record | 46 |
| Northeastern Forestry Universitylocation not on record | 39 |
| GMBAlocation not on record | 28 |
| TAIElocation not on record | 27 |
| Guilin, CN | 26 |
| Hebei Normal Universitylocation not on record | 24 |
| Guangzhou, CN | 20 |
| Armidale, AU | 17 |
| Kew, GB | 16 |
| Adam Mickiewicz University in Poznańlocation not on record | 15 |
| Institute of Applied Ecology, Academia Sinicalocation not on record | 14 |
| Parc Botanique et Zoologique de Tsimbazaza (PBZT)location not on record | 14 |
| 河南豫北黄河故道湿地鸟类国家级自然保护区location not on record | 13 |
| Kensington, AU | 13 |
| Saint Louis, US | 12 |
| Odawara, JP | 11 |
| Guangxi Institute of Traditional Medical and Pharmaceutical Scienceslocation not on record | 11 |
| NSW Dept of Planning, Industry and Environmentlocation not on record | 11 |
| Taipei, TW | 10 |
| Ischia Marine Centrelocation not on record | 10 |
| Durban, ZA | 9 |
| Awka, NG | 9 |
| Changsha, CN | 8 |
| Wellington, NZ | 8 |
| Xiamen, CN | 8 |
| Shanghai, CN | 7 |
| Auckland, NZ | 7 |
| J. Rusek Collectionlocation not on record | 7 |
| MeiseBGlocation not on record | 7 |
| Nagasaki University - Fisherieslocation not on record | 7 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 7 |
| Seoul, KR | 6 |
| Herbarium of the Department of Botany, University of Tokyolocation not on record | 6 |
| Government College University Lahore, Dr. Sultan Ahmad Herbariumlocation not on record | 6 |
| SCAUlocation not on record | 6 |
| Smithfield, AU | 6 |
| Museo universitario di Chietilocation not on record | 5 |
| Dehra Dun, IN | 5 |
| Bronx, US | 5 |
| Natural History Museum, Tribhuvan Universitylocation not on record | 5 |
| Cape Town, ZA | 5 |
| Chengdu, CN | 4 |
| Sagamihara, JP | 4 |
| nlocation not on record | 4 |
| National Institute of Biological Resourceslocation not on record | 4 |
| Strecker Museum, Baylor Universitylocation not on record | 4 |
| Hobart, AU | 4 |
| Uppsala, SE | 4 |
| Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record | 4 |
| Shanghai, CN | 4 |
| University of Stellenboschlocation not on record | 4 |
| NSW Office of Environment and Heritagelocation not on record | 4 |
| Parkville, AU | 3 |
| Plocation not on record | 3 |
| Zhengzhou, CN | 3 |
| DMZ botanic gardenlocation not on record | 3 |
| Stockholm, SE | 3 |
| James Cook Townsvillelocation not on record | 3 |
| CASlocation not on record | 3 |
| Chongqing Natural History Museumlocation not on record | 3 |
| Zhejiang Museum of Natural Historylocation not on record | 3 |
| Görlitz, DE | 3 |
| Chengdu, CN | 3 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 2 |
| Pondicherry, IN | 2 |
| Cambridge, US | 2 |
| Guiyang, CN | 2 |
| Fujian Institute of Subtropical Botanylocation not on record | 2 |
| Peking Universitylocation not on record | 2 |
| Jishou Universitylocation not on record | 2 |
| Xinxiang, CN | 2 |
| John T. Waterhouse Herbariumlocation not on record | 2 |
| Herbarium of South China Botanical Gardenlocation not on record | 2 |
| Wuhan, CN | 2 |
| Chicago, US | 2 |
| Chiba, JP | 2 |
| Department of Botany Herbarium Ahmadu Bello University, Zarialocation not on record | 2 |
| MSB-3054location not on record | 1 |
| FJIDClocation not on record | 1 |
| Logan, US | 1 |
| South African National Biodiversity Institutelocation not on record | 1 |
| Xining, CN | 1 |
| Zürich, CH | 1 |
| Bloomington, US | 1 |
| Parthenon Tama History Museumlocation not on record | 1 |
| WNNUlocation not on record | 1 |
| Baroda, IN | 1 |
| St. Paul, US | 1 |
| LDlocation not on record | 1 |
| Gujarat Biodiversity Gene Banklocation not on record | 1 |
| Cambridge University Herbariumlocation not on record | 1 |
| Wlocation not on record | 1 |
| Tsukuba, JP | 1 |
| Moscow State Universitylocation not on record | 1 |
| Post Graduate College Bannulocation not on record | 1 |
| Hanshan Normal Universitylocation not on record | 1 |
| J.F.Oberlin Universitylocation not on record | 1 |
| Shanxi Universitylocation not on record | 1 |
| Tianjin Natural History Museumlocation not on record | 1 |
| GAlocation not on record | 1 |
| South China Normal Universitylocation not on record | 1 |
| HNBlocation not on record | 1 |
| EMTCMlocation not on record | 1 |
| Wuzhou, CN | 1 |
| Zhejiang Universitylocation not on record | 1 |
| Beijing Normal Universitylocation not on record | 1 |
| Central China Normal Universitylocation not on record | 1 |
| Guiyang, CN | 1 |
| LNBG$location not on record | 1 |
| Glocation not on record | 1 |
| Instituto de Investigação Científica Tropicallocation not on record | 1 |
| Vancouver, CA | 1 |
| Uniwersytet Śląski w Katowicachlocation not on record | 1 |
| Zhuzhou, CN | 1 |
| La Trobe Universitylocation not on record | 1 |
| Qarshi Botanical Gardenlocation not on record | 1 |
130 institutions · 2 060 of 2 153 vouchered records shown · 89 without an institution code
09Environmental DNA18 detections
Where the DNA of Polygonum plebeium 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 found18
Studies independent surveys1
Countries7
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 18 detections have coordinates
Open the map7 countries0
Irrigation ditches near farmlandsGrassland
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 median20.5 °C 4.00–26.0
Seasonal swing summer↔winter21.1 °C
Max temp (day)25.0 °C 7.80–31.1
Min temp (night)15.6 °C -0.5–18.7
Precipitation41.7 mm/mo 33.5–103
Air humidity48.7 % 44.1–62.8
Moisture balance-78.6 mm/mo -132–21.3
Vapour deficit1,096 Pa 418–1,911
Wind speed3.10 m/s 2.30–4.00
Cloud cover41.3 % 37.2–57.6
CHELSA 1981–2010, ~9 km grid, at location & month of 14 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.