Taraxacum arcticum

(Trautv.) Dahlst. · species

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Plantae/Tracheophyta/Magnoliopsida/Asterales/Asteraceae/Taraxacum

At a glance

Occurrence records734

Data sources10

Biological traits17

DNA specimens13

eDNA detections6

Sources10 archives

Databases and archives Taraxacum arcticum's data was compiled from.

WikipediaWikimedia Foundation4 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility734 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI6 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics13 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↗

On this page6 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements3 literature sources17 traits

Occurrence & distributionGBIF734 records

Environmental DNA1 datasets · 2 countries6 detections

DNA & barcodingBOLD · NCBI13 specimens

Genome at a glanceCCDB2n = 40

01Narrative

Taraxacum arcticum, the arctic dandelion, is a species of flowering plant belonging to the family Asteraceae. Its native range is Greenland, Northern Europe, Northern Asia and the Northern Russian Far East.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPTRYGIFT

Size & morphology1

Leaf size235 mm²

Life cycle & reproduction4

Flowering endAug

Flowering startJul

Life formperennial

Life spanperennial

Diet & foraging1

Parasiteindependent

Habitat & environment7

Aquaticterrestrial

Climatetemperate

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Habitat GIFTmeadows, mountains, stony places

Woodinessnon-woody

Physiology & chemistry4

Leaf n30.09 mg/g

Leaf p3.6 mg/g

Photosynthetic pathwayC3

Specific leaf area (SLA)29.26 mm²/mg

05DNA & barcoding13 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 Taraxacum arcticum has left across the world's sequence archives.

At a glance

DNA specimens13

Marker genes6

GenBank sequences7

eDNA detections6

Countries2

The DNA barcodea real sequence read deposited for this species

ITSKT960364.1 ↗238 bpGreenland · 2012

ACGT

CCATCCGGTTGAGGGCACGCCTGCCTGGGCGTCACGCATCGCGTCGCCCCCNATCATACTTCCCTTAAGGGTAGTCGTGGTGATTGGGNG …

Taraxacum arcticum voucher ZA2012-2190 internal transcribed spacer 2, partial sequence

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★rbcL3★rbcLa★ITS4★ITS1★ITS2

plant barcodefungal barcode

06Genome at a glanceCCDB

The complete instruction manual Taraxacum arcticum 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 = 40 n = 20

Ploidypolyploid inferred

Chromosome records40–402n range40median40mode9records

Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references

2n 409×CCDB · ipcn-api-dl · CCDB · book-ipcn67-71 · CCDB · book-ipcn73-74

CCDB · ipcn-api-dl — Krogulevich, R. E. 1984. In R.E. Krogulevich & T.S. Rostovtseva, Khromosomnye Chisla Tsvetkovykh Rastenii i Sibiri Dal'nego Vostoka. Izdatel'stvo "Nauka", Sibirskoe Otdelenie, Novosibirsk. ý.

CCDB · ipcn-api-dl — Tzvelev, N. & B. Yurtzev. 1984. Generis Taraxacum Wigg. (Asteraceae) species novae florae URSS. Nov. Sist. Vysshch. Rast. (Nov. Syst. Pl. Vasc.). 21: 187–202.

CCDB · ipcn-api-dl — Krogulevich, R. E. 1976. Rol poliploidii v genesise flory Putorana. In: L. I. Malyshev, ed. 1976 Flora Putorana: Materali k Poznaniiu Osobennostei Sostava i Genezisia Gornykh Subarkticheskikh Flor Sibir. Novosibirsk. Nauka, Novosibirsk

CCDB · ipcn-api-dl — Petrovsky, V. V. & P. G. ZHUKOVA. 1981. Chromosome numbers and taxonomy of some plant species of Wrangel Island. Bot. Zhurn. 66 (3): 380–387.

CCDB · ipcn-api-dl — Engelskjon, T. 1979. Chromosome numbers in vascular plants from Norway, including Svalbard. Opera Bot. 52: 1–38.

CCDB · ipcn-api-dl — Krasnikov, A. A. & E. B. Pospelova. 2002. Chromosome numbers of some species of Taraxacum from Tairyr peninsula. Bot. Žhurn. (Moscow & Leningrad) 87(9): 135.

CCDB · book-ipcn67-71 — ZHUKOVA, P.G. 1968. Chromosome numbers in some plant species from the north-east of the U.S.S.R. III. (In Russian) Bot. Zurn. 53: 365-368.

CCDB · book-ipcn67-71 — ZHUKOVA, P. G. 1967. Karyology of some plants, cultivated in the Arctic-Alpine Botanical Garden. (In Russian). In N. A. Avrorin (ed.): Plantarum in Zonam Polarem Transportatio. II. Leningrad 1967, pp. 139-149.

CCDB · book-ipcn73-74 — ZHUKOVA, P.G., V.V. PETROVSKY, & T.N. PLIEVA. 1973. The chromosome numbers and taxonomy of some plant species from Siberia and Far East. (in Russian) Bot. zurn. (Moscow & Leningrad) 58: 1331-1342.

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 type734 records

Wild obs. + sensor397

Museum / vouchered332

Cultivated / captive2

Other3

Origin

Introduced2

Range

Area of Occupancy AOO2 272 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 accuracy36% within 1 km

≤100 m 112≤1 km 20≤10 km 106>10 km 127

365 georeferenced · 32 without coordinates

Open the mapobservation + sensor397

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 accuracy39% within 1 km

≤100 m 16≤1 km 71≤10 km 135>10 km 2

224 georeferenced · 108 without coordinates

Open the institutions mapphysical evidence332

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

Coordinate accuracy0% within 1 km

≤10 km 2

2 georeferenced

Open the mapnot free-living2

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 institutions3 of 15 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Olocation not on record	113
Moscow State Universitylocation not on record	91
TROMlocation not on record	59
Trondheim, NO	28
LDlocation not on record	16
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record	8
University of Helsinkilocation not on record	3
BRNUlocation not on record	2
Tromso University Museumlocation not on record	2
Stockholm, SE	1
Vancouver, CA	1
Herbarium J Räsänenlocation not on record	1
Wlocation not on record	1
PRClocation not on record	1
Memorial University of Newfoundlandlocation not on record	1

15 institutions · 328 of 332 vouchered records shown · 3 without an institution code

Cultivated / Captivenot free-living

A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.

09Environmental DNA6 detections

Where the DNA of Taraxacum arcticum 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 found6

Studies independent surveys1

Countries2

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 6 detections have coordinates

Open the map2 countries0

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 median0.7 °C -13.2–4.80

Seasonal swing summer↔winter25.0 °C

Max temp (day)1.70 °C -11.3–5.30

Min temp (night)-2.20 °C -16.2–2.20

Precipitation14.8 mm/mo 9.70–34.1

Air humidity57.4 % 55.8–72.1

Moisture balance-87.2 mm/mo -103–-18.3

Vapour deficit285 Pa 153–339

Wind speed2.60 m/s 2.20–5.10

Cloud cover38.2 % 34.4–59.9

CHELSA 1981–2010, ~9 km grid, at location & month of 6 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.

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