Arisaema thunbergii

Blume · species

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Plantae/Tracheophyta/Liliopsida/Alismatales/Araceae/Arisaema

At a glance

Occurrence records179

Data sources9

Biological traits9

DNA specimens5

eDNA detections5

Sources9 archives

Databases and archives Arisaema thunbergii's data was compiled from.

WikipediaWikimedia Foundation3 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility179 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI5 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics5 specimens↗

GRIN TaxonomyUSDA-ARSdistribution & uses↗

Open Tree of LifeOpenTreephylogeny backbone↗

CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗

PloiDBPloidy Databasegenome & karyotype

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 sources9 traits

Occurrence & distributionGBIF179 records

Environmental DNA1 datasets · 1 countries5 detections

DNA & barcodingBOLD5 specimens

Genome at a glanceCCDB2n = 28

01Narrative

Arisaema thunbergii subsp. urashima is a herbaceous perennial plant. It is widespread through the woodlands of Japan, especially near the coast. The plant has a very curious inflorescence, and is popular in horticulture. As with all arisaemas, the inflorescence consists of a spathe tube enclosing a spadix appendix. In the case of A. thunbergi subsp. urashima, the spadix appendix is elongated into a free hanging thread of 45 to 60 cm. The underground tuber often produces offsets, which can be removed and grown on. The foliage dies down by summer, leaving the fruiting spike to ripen in autumn. The red berries contain high amounts of oxalic acid, and can cause painful irritation to the skin. All parts of the plant should be considered poisonous.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPGIFTTRY

Life cycle & reproduction2

Life formtuberous geophyte

Raunkiær life formcryptophyte

Diet & foraging1

Parasiteindependent

Habitat & environment5

Climatesubtropical

Climberself-supporting

Epiphyteterrestrial

Growth formherb

Woodinessnon-woody

Other traits1

Plant support typefree-standing

05DNA & barcoding5 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 Arisaema thunbergii has left across the world's sequence archives.

At a glance

DNA specimens5

Marker genes2

eDNA detections5

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★ITS

plant barcodefungal barcode

06Genome at a glanceCCDB

The complete instruction manual Arisaema thunbergii 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 = 28 n = 14

Ploidydiploid inferred

Chromosome records28–282n range28median28mode5records

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

2n 285×CCDB · ipcn-api-dl · CCDB · araceae · CCDB · book-atlas-flowering-plants

CCDB · ipcn-api-dl — Ko, S. c. & Y. s. Kim. 1985. A taxonomic study of Arisaema in Korea. Korean J. Pl. Taxon. 15: 67–109.

CCDB · ipcn-api-dl — Watanabe, K., T. Kobayashi & J. Marata. 1998. Cytology and systematics in Japanese Arisaema (Araceae). J. Pl. Res. 111: 509–521.

CCDB · araceae — Ko & Kim, 1985

CCDB · araceae — Watanabe et al., 1998

CCDB · book-atlas-flowering-plants — Nakajima '33, Ito '42

Ploidy records — measured levels and diploid/polyploid inferences · click for sources

diploid inferred1×PloiDB · genus-scale

PloiDB · genus-scale — chromEvol; reliability=1.000 ↗

08Occurrence & distribution

Record type179 records

Wild obs. + sensor141

Museum / vouchered37

Cultivated / captive1

Range

Area of Occupancy AOO540 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 accuracy70% within 1 km

≤100 m 37≤1 km 12≤10 km 3>10 km 18

70 georeferenced · 71 without coordinates

Open the mapobservation + sensor141

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 accuracy100% within 1 km

≤100 m 1≤1 km 5

6 georeferenced · 31 without coordinates

Open the institutions mapphysical evidence37

Cultivated / Captivenot free-living

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

Coordinate accuracy

no georeferenced coordinates · 1 records without

Open the mapnot free-living1

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 institutions9 of 14 geolocated

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

Institution	Specimens
Sanda, JP	8
Odawara, JP	4
National Institute of Biological Resourceslocation not on record	4
KR	4
Bangkok, TH	3
Peking Universitylocation not on record	2
Berlin, DE	2
Saint Louis, US	2
KURAlocation not on record	1
Kew, GB	1
Yangling, CN	1
Guizhou Forestry Schoollocation not on record	1
Smithsonian Institution, National Museum of Natural Historylocation not on record	1
Nanjing, CN	1

14 institutions · 35 of 37 vouchered records shown · 2 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 DNA5 detections

Where the DNA of Arisaema thunbergii 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 found5

Studies independent surveys1

Countries1

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

Where its DNA was found

0 of 5 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 median-0.5 °C -0.5–-0.5

Seasonal swing summer↔winter26.3 °C

Max temp (day)4.70 °C

Min temp (night)-4.00 °C

Precipitation65.6 mm/mo

Air humidity58.6 %

Moisture balance33.5 mm/mo

Vapour deficit246 Pa

Wind speed3.80 m/s

Cloud cover47.4 %

CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · 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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