Euphorbia sieboldiana, the Siebold's spurge, is a species of flowering plant in the spurge family Euphorbiaceae. It is native to eastern Asia, where it is found in China, Japan, Korea, and eastern Russia.Euphorbia sieboldiana Flora of China Its natural habitat is in grassy areas and forest margins. It is a common species in Japan. It is an rhizomatous perennial growing to 70 cm tall. It produces small flowers in compact pseudoumbels. These lack petal-like appendages. This species can be readily identified by the horn-like projections on the glands of the involucre. Blooming time is in spring and early summer.
No narrative description available for this taxon yet.
Compounds documented for Euphorbia sieboldiana across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
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 Euphorbia sieboldiana has left across the world's sequence archives.
At a glance
DNA specimens2
Marker genes3
GenBank sequences10
eDNA detections2
Countries1
The DNA barcodea real sequence read deposited for this species
Euphorbia sieboldiana voucher Eup_sie_Park13018 small subunit ribosomal RNA gene, partial sequence; internal transcribed spacer 1, 5.8S ribosomal RNA gene, and internal transcribed spacer 2, complete sequence; and large subunit ribosomal RNA gene, 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.
★matK2★rbcL6★ITS2
plant barcodefungal barcode
06Genome at a glanceCCDB · GoaT · TreeOfSex
The complete instruction manualEuphorbia sieboldiana 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.
CCDB · ipcn-api-dl — Starodubtsev, V. N. 1985. Chromosome numbers in the representatives of some families from the Soviet Far East. Bot. Zhurn. SSSR 70(2): 275–277. (In Russian).
CCDB · ipcn-api-dl — Chung, G. Y., B. u. Oh, K. R. Park, J. H. Kim, M. S. Kim, G. H. Nam & C. G. Jang. 2003. Cytotaxonomic study of Korean Euphorbia L. (Euphorbiaceae). Korean J. Pl. Taxon. 33: 279–293.
CCDB · ipcn-api-dl — HURUSAWA, I. & S. SHIMOYAMA. 1976. Die Mannigfaltigkeit der Chromosomenzahl bei der Gattung Euphorbia. Beitr. Biol. Pflanzen 52: 255–266.
CCDB · ipcn-api-dl — HURUSAWA, I. & S. SHIMOYAMA. 1976. Die Mannigfaltigkeit der Chromosomenzahl bei der Gattung Euphorbia. Beitr. Biol. Pflanzen 52: 255–266.
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy42% within 1 km
≤100 m 17≤1 km 11≤10 km 15>10 km 24
67 georeferenced · 485 without coordinates
Open the mapobservation + sensor552
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 accuracy20% within 1 km
≤1 km 36≤10 km 140>10 km 4
180 georeferenced · 1 524 without coordinates
Open the institutions mapphysical evidence1 704
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 institutions46 of 86 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Tsukuba, JP
286
Nagano City, JP
250
Odawara, JP
194
Toyama, JP
87
Chiba, JP
75
Sanda, JP
70
Kochi, JP
56
Shinshu Universitylocation not on record
54
Tomioka, JP
44
Kunming, CN
43
Fukushima Universitylocation not on record
39
Beijing, CN
29
KURAlocation not on record
29
Nagatoro-machi, Chichibu-gun, JP
28
Bando, JP
25
KR
24
KOMlocation not on record
23
Sendai, JP
23
JP
22
Tokushima, JP
21
National Institute of Biological Resourceslocation not on record
17
Guangzhou, CN
16
KIRMlocation not on record
16
Wuhan, CN
15
Herbarium of the Department of Botany, University of Tokyolocation not on record
12
Kagoshima, JP
12
Iwate Prefectural Museumlocation not on record
11
Moscow State Universitylocation not on record
10
Sagamihara, JP
10
Seoul, KR
10
NSMKlocation not on record
10
Korea National Arboretumlocation not on record
8
SIHUlocation not on record
7
Akita Prefectural Museumlocation not on record
7
Yangling, CN
7
Kyoto Universitylocation not on record
5
Madison, US
4
Central China Normal Universitylocation not on record
4
Chengdu, CN
4
Taipei, TW
4
Hokkaido University Museumlocation not on record
4
CASlocation not on record
4
Servico de Microbiologia e Imunologialocation not on record
4
Guilin, CN
4
San Jose State University, Museum of Birds and Mammalslocation not on record
4
Zhejiang Universitylocation not on record
3
Museum Of Natural And Environmental History, Shizuokalocation not on record
3
Zhejiang Museum of Natural Historylocation not on record
3
Nishihara, JP
3
J.F.Oberlin Universitylocation not on record
3
Nanjing, CN
3
Guangzhou, CN
2
Nanchong, CN
2
University of Stellenboschlocation not on record
2
Port Elizabeth Museum (Bayworld)location not on record
2
Otaru, JP
2
Shanghai, CN
2
Ischia Marine Centrelocation not on record
2
Chapel Hill, US
2
Bronx, US
2
Chicago, US
2
Ann Arbor, US
2
Osaka, JP
2
Xian, CN
2
Chengdu, CN
2
Sugadaira Research Station, Mountain Science Center, University of Tsukubalocation not on record
2
WNNUlocation not on record
1
东北师范大学自然博物馆location not on record
1
Beijing Natural History Museumlocation not on record
1
Yunnan Universitylocation not on record
1
Chongqing Museumlocation not on record
1
Lanzhou, CN
1
Shenzhen, CN
1
Oiso Municipal Museumlocation not on record
1
Changsha, CN
1
Fujian Institute of Subtropical Botanylocation not on record
1
Nanjing, CN
1
Shenyang Agricultural Universitylocation not on record
1
Guiyang, CN
1
Kawasaki Shi Tama Ku, JP
1
Parthenon Tama History Museumlocation not on record
1
Elocation not on record
1
Chengdu, CN
1
Ishikawa Museum of Natural Historylocation not on record
1
Omachi Alpine Museumlocation not on record
1
Mie Prefectural Museumlocation not on record
1
86 institutions · 1 699 of 1 704 vouchered records shown · 4 without an institution code
09Environmental DNA2 detections
Where the DNA of Euphorbia sieboldiana 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
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 median12.6 °C 12.6–12.6
Seasonal swing summer↔winter27.3 °C
Max temp (day)16.4 °C
Min temp (night)7.40 °C
Precipitation112 mm/mo
Air humidity58.0 %
Moisture balance21.7 mm/mo
Vapour deficit690 Pa
Wind speed2.90 m/s
Cloud cover41.1 %
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.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility2 256 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI2 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics2 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
Tree of SexTree of Sex Consortiumgenome & karyotype↗