Cornus kousa is a small deciduous tree 8 - tall, in the flowering plant family Cornaceae. Common names include kousa, kousa dogwood, Chinese dogwood, Korean dogwood, and Japanese dogwood. Synonyms are Benthamia kousa and Cynoxylon kousa. It is a plant native to East Asia including Korea, China and Japan. Widely cultivated as an ornamental, it is naturalized in New York State.
No narrative description available for this taxon yet.
Compounds documented for Cornus kousa 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 Cornus kousa has left across the world's sequence archives.
At a glance
DNA specimens5
Marker genes3
GenBank sequences10
eDNA detections37
Countries2
The DNA barcodea real sequence read deposited for this species
Cornus kousa cultivar Rutban 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★rbcL4★ITS4
plant barcodefungal barcode
06Genome at a glanceCCDB · GoaT · NCBI
The complete instruction manualCornus kousa 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.
Genome sizehow big the whole instruction manual is
Genome size≈1 602 738 684 bp assembly estimate
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
BACTERIUM Carsonella ruddii0.00016 Gb
FUNGUS0.04 Gb
INSECT0.25 Gb
THIS GENOME Cornus kousa1.6 Gb
HUMAN3.2 Gb
WHEAT17 Gb
FERN Tmesipteris160.45 Gb
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 — Li, R. j. & Z. y. Shang. 2002. Karyotypes of five species of Cornus (s.l.) (Cornaceae) from China. Acta Phytotax. Sin. 40(4): 357–363.
CCDB · book-atlas-flowering-plants — Dermen 1932b
2n 181×CCDB · Cave1962
CCDB · Cave1962 — Egolf 1962
Ploidy records — measured levels and diploid/polyploid inferences · click for sources
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
Assembly levelChromosome
08Occurrence & distribution
Record type3 416 records
Wild obs. + sensor2 878
Museum / vouchered489
Cultivated / captive47
Other2
Origin
Introduced16
Range
Area of Occupancy AOO8 904 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 accuracy92% within 1 km
≤100 m 1 500≤1 km 209≤10 km 93>10 km 59
1 861 georeferenced · 1 017 without coordinates
Open the mapobservation + sensor2 878
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 accuracy57% within 1 km
≤100 m 17≤1 km 124≤10 km 106>10 km 2
249 georeferenced · 240 without coordinates
Open the institutions mapphysical evidence489
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy45% within 1 km
≤1 km 13≤10 km 16
29 georeferenced · 18 without coordinates
Open the mapnot free-living47
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 institutions57 of 90 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
KR
91
Chongqing Museumlocation not on record
37
Herbarium of the Department of Botany, University of Tokyolocation not on record
37
Kagoshima, JP
19
Bangkok, TH
13
Central China Normal Universitylocation not on record
13
Beijing, CN
12
Kyoto Universitylocation not on record
10
Elocation not on record
10
MeiseBGlocation not on record
9
Korea National Arboretumlocation not on record
8
Guangzhou, CN
7
Nanjing, CN
6
Philadelphia, US
6
Cambridge, US
6
KIWElocation not on record
6
Bronx, US
5
Yangling, CN
5
Lanzhou, CN
5
College Park, US
5
Chapel Hill, US
5
Vancouver, CA
5
Nanjing, CN
4
“Manash Kozybayev North Kazakhstan University" NPLClocation not on record
4
Bothell, US
4
NSMKlocation not on record
4
Guilin, CN
4
DNSMlocation not on record
4
Adam Mickiewicz University in Poznańlocation not on record
4
Burlington, US
3
Xining, CN
3
Plocation not on record
3
Morgantown, US
3
Logan, US
3
Denver, US
3
Johnson City, US
3
Museum of the Rockieslocation not on record
3
University of New Hampshirelocation not on record
3
Jiangxi Agricultural Universitylocation not on record
3
Ishikawa Museum of Natural Historylocation not on record
3
Millersville, US
3
Wuhan, CN
3
Columbia, US
2
Hangzhou, CN
2
GJOlocation not on record
2
San Sebastián, ES
2
Angwin, US
2
KIRMlocation not on record
2
Macomb, US
2
Fort Worth, US
2
Royal Botanical Gardenslocation not on record
2
Wlocation not on record
2
Dekalb, US
2
Rotorua, NZ
2
San Jose State University, Museum of Birds and Mammalslocation not on record
2
Shanghai, CN
2
Nagasaki University - Fisherieslocation not on record
2
Wuhan, CN
2
Dover, US
2
FJIDClocation not on record
2
Xiamen, CN
2
Hudson, US
1
GZUlocation not on record
1
Minia, EG
1
Herbarium of South China Botanical Gardenlocation not on record
1
Tennessee Technological Universitylocation not on record
1
Lincoln, US
1
Chengdu, CN
1
Clemson, US
1
Guiyang, CN
1
GNWPlocation not on record
1
Taipei, TW
1
Tampa, US
1
Hebei Normal Universitylocation not on record
1
Shanghai, CN
1
Cambridge, US
1
Guizhou Forestry Schoollocation not on record
1
Vitoria, ES
1
Otaru, JP
1
Provincia di Livornolocation not on record
1
Kew, GB
1
Tsukuba, JP
1
Philadelphia, US
1
DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record
1
Knoxville, US
1
Edinburgh, GB
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
Auckland, NZ
1
Flagstaff, US
1
Awka, NG
1
90 institutions · 454 of 489 vouchered records shown · 30 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 DNA37 detections
Where the DNA of Cornus kousa 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 found37
Studies independent surveys1
Countries2
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 37 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 median19.0 °C 13.6–23.5
Seasonal swing summer↔winter23.1 °C
Max temp (day)22.4 °C 16.4–26.1
Min temp (night)14.7 °C 9.70–19.5
Precipitation233 mm/mo 151–386
Air humidity64.2 % 61.0–67.8
Moisture balance104 mm/mo 33.8–262
Vapour deficit773 Pa 553–1,025
Wind speed2.40 m/s 1.90–3.40
Cloud cover43.5 % 35.5–49.7
CHELSA 1981–2010, ~9 km grid, at location & month of 29 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 Foundation10 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility3 416 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI37 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics5 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
WikidataWikimedia Foundationstructured facts↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗