Piper kadsura (Japanese pepper) is an East Asian species of pepper vine. It belongs to the magnoliid family Piperaceae. In Japanese, it is known as fūtōkazura (風藤). It only grows in warmer areas, and was used medicinally in the past. Piper kadsura (flower male).jpg |Flower spike (male) Piper kadsura (flower female).jpg |Flower spike (female) Piper kadsura (fruits s3).jpg|Fruits
No narrative description available for this taxon yet.
Compounds documented for Piper kadsura 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 Piper kadsura has left across the world's sequence archives.
At a glance
DNA specimens13
Marker genes4
GenBank sequences10
eDNA detections9
Countries1
The DNA barcodea real sequence read deposited for this species
Piper kadsura TF<JPN>:TW025133 chloroplast rbcL gene for ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit, partial cds
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.
★matK5★rbcL5★ITStrnH-psbA
plant barcodefungal barcodemarker
06Genome at a glanceCCDB · GoaT · TreeOfSex
The complete instruction manualPiper kadsura 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.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
DNA clock origin31.9 Ma TimeTree
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
08Occurrence & distribution
Record type5 678 records
Wild obs. + sensor4 092
Museum / vouchered1 384
Cultivated / captive1
Other201
Origin
Native80
Range
Area of Occupancy AOO7 520 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 accuracy83% within 1 km
≤100 m 1 743≤1 km 334≤10 km 227>10 km 197
2 501 georeferenced · 1 591 without coordinates
Open the mapobservation + sensor4 092
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 19≤1 km 36≤10 km 37>10 km 7
99 georeferenced · 1 285 without coordinates
Open the institutions mapphysical evidence1 384
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 institutions38 of 66 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Nishihara, JP
216
Taipei, TW
167
Tsukuba, JP
153
National Museum of Natural Sciencelocation not on record
89
Sanda, JP
87
TAIElocation not on record
80
Odawara, JP
67
Taipei, TW
64
Kagoshima, JP
40
Taipei, TW
38
Kochi, JP
35
Beijing, CN
27
Chiba, JP
25
Bando, JP
20
Nanjing, CN
18
Tokushima, JP
15
Shanghai, CN
14
Toyama, JP
13
Nagano City, JP
12
Guilin, CN
12
Nishihara, JP
12
Zhejiang Universitylocation not on record
11
Shanghai, CN
10
National Institute of Biological Resourceslocation not on record
9
Sendai, JP
8
Elocation not on record
7
FJIDClocation not on record
7
Saint Louis, US
7
Zhejiang Museum of Natural Historylocation not on record
6
Herbarium of the Department of Botany, University of Tokyolocation not on record
6
KR
6
Kunming, CN
6
FFPRIlocation not on record
6
Nagasaki University - Fisherieslocation not on record
6
Xiamen, CN
6
CASlocation not on record
5
Nagatoro-machi, Chichibu-gun, JP
5
SMMUlocation not on record
4
JP
4
Sagamihara, JP
4
Forestry and Forest Products Research Institutelocation not on record
4
Moscow State Universitylocation not on record
3
Mie Prefectural Museumlocation not on record
3
Changsha, CN
3
Fort Worth, US
2
Universidad Católica de Santa Maríalocation not on record
2
EMTCMlocation not on record
2
Stockholm, SE
2
Guangzhou, CN
2
Otaru, JP
2
Hangzhou, CN
2
Tomioka, JP
1
Wlocation not on record
1
Hangzhou Normal Collegelocation not on record
1
Bronx, US
1
Fujian Institute of Subtropical Botanylocation not on record
1
“Manash Kozybayev North Kazakhstan University" NPLClocation not on record
1
University of Stellenboschlocation not on record
1
Museum Of Natural And Environmental History, Shizuokalocation not on record
1
Tajik National Universitylocation not on record
1
SJNAlocation not on record
1
Fukushima Universitylocation not on record
1
J.F.Oberlin Universitylocation not on record
1
St. Paul, US
1
Port Elizabeth Museum (Bayworld)location not on record
1
Ann Arbor, US
1
66 institutions · 1 369 of 1 384 vouchered records shown · 15 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 DNA9 detections
Where the DNA of Piper kadsura 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 found9
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 9 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 median18.0 °C 14.3–20.3
Seasonal swing summer↔winter16.5 °C
Max temp (day)19.1 °C 16.2–21.9
Min temp (night)16.8 °C 11.8–18.2
Precipitation229 mm/mo 211–262
Air humidity58.8 % 56.0–62.2
Moisture balance120 mm/mo
Vapour deficit859 Pa 699–911
Wind speed5.60 m/s
Cloud cover37.8 % 37.3–42.2
CHELSA 1981–2010, ~9 km grid, at location & month of 5 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 Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility5 678 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI9 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics13 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↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗