Stranvaesia davidiana
Decne. · speciesAt a glance
Sources11 archives
Databases and archives Stranvaesia davidiana's data was compiled from.
WikipediaWikimedia Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 696 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI12 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics11 specimens↗
NCBIUS National Library of Medicinesequences↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Stranvaesia davidiana, the Chinese photinia, is a species of shrub grown as an ornamental plant. Its flowers are white and grow in close clusters, followed by small pome fruits. It originated from east Asia and has been introduced to North America as a garden plant. It is sometimes known as Photinia davidiana.
No narrative description available for this taxon yet.
Size & morphology20
Life cycle & reproduction5
Diet & foraging1
Habitat & environment10
Physiology & chemistry5
Other traits5
Compounds documented for Stranvaesia davidiana across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile2 classes
Documented compounds22 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1R,12S,13R,16R)-5,7-dihydroxy-15,15-dimethyl-4-(2-methylbut-3-en-2-yl)-13-(3-methylbut-2-enyl)-2,14-dioxapentacyclo[11.4.1.01,10.03,8.012,16]octadeca-3(8),4,6,10-tetraene-9,18-dione | present | NPASS | |
| (1R,12S,13R,16R)-7-hydroxy-5-methoxy-15,15-dimethyl-4-(2-methylbut-3-en-2-yl)-13-(3-methylbut-2-enyl)-2,14-dioxapentacyclo[11.4.1.01,10.03,8.012,16]octadeca-3(8),4,6,10-tetraene-9,18-dione | present | NPASS | |
| (1R,2R,13R,15S)-8-hydroxy-6-methoxy-17,17-dimethyl-5-(2-methylbut-3-en-2-yl)-15-(3-methylbut-2-enyl)-3,16-dioxapentacyclo[11.4.1.02,11.02,15.04,9]octadeca-4(9),5,7,11-tetraene-10,14-dione | present | NPASS | |
| (1R,2R,7R,16R,18S)-11-hydroxy-6,6,7,20,20-pentamethyl-18-(3-methylbut-2-enyl)-3,8,19-trioxahexacyclo[14.4.1.02,14.02,18.04,12.05,9]henicosa-4(12),5(9),10,14-tetraene-13,17-dione | present | NPASS | |
| (1R,2R,7R,16R,18S)-11-methoxy-6,6,7,20,20-pentamethyl-18-(3-methylbut-2-enyl)-3,8,19-trioxahexacyclo[14.4.1.02,14.02,18.04,12.05,9]henicosa-4,9,11,14-tetraene-13,17-dione | present | NPASS | |
| (1R,3R,5R,6S,7R,8Z)-7-hydroxy-8-[hydroxy(phenyl)methylidene]-6-methyl-1,3,5-tris(3-methylbut-2-enyl)tricyclo[4.3.1.03,7]decane-2,9-dione | present | NPASS | |
| (1R,6R,15S,16R,19R)-10-hydroxy-5,5,6,18,18-pentamethyl-16-(3-methylbut-2-enyl)-2,7,17-trioxahexacyclo[14.4.1.01,13.03,11.04,8.015,19]henicosa-3(11),4(8),9,13-tetraene-12,21-dione | present | NPASS | |
| (1R,6S,15S,16R,19R)-10-hydroxy-5,5,6,18,18-pentamethyl-16-(3-methylbut-2-enyl)-2,7,17-trioxahexacyclo[14.4.1.01,13.03,11.04,8.015,19]henicosa-3(11),4(8),9,13-tetraene-12,21-dione | present | NPASS | |
| (1S,2R,4R,6Z,8S,9R)-9-hydroxy-6-[hydroxy(phenyl)methylidene]-1-methyl-2,4,8-tris(3-methylbut-2-enyl)-10-oxatricyclo[6.2.1.04,9]undecane-5,7-dione | present | NPASS | |
| (1S,3R,12R,14R,16S,17R,19R)-19-hydroxy-4,4,16-trimethyl-14,17-bis(3-methylbut-2-enyl)hexacyclo[10.6.1.11,14.03,12.05,10.016,19]icosa-5,7,9-triene-11,13,20-trione | present | NPASS |
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 Stranvaesia davidiana has left across the world's sequence archives.
At a glance
★ 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.
The complete instruction manual Stranvaesia davidiana 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.
2n 342×CCDB · nw-europe-fl · CCDB · book-atlas-flowering-plants
diploid inferred1×PloiDB · genus-scale
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
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.
Record type1 696 records
Origin
Range
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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 |
|---|---|
| Beijing, CN | 418 |
| Chengdu, CN | 193 |
| Chengdu, CN | 146 |
| Kunming, CN | 96 |
| Yangling, CN | 85 |
| Cambridge, US | 72 |
| Seoul, KR | 65 |
| Guangzhou, CN | 63 |
| Guilin, CN | 50 |
| Central China Normal Universitylocation not on record | 29 |
| Nanjing, CN | 25 |
| Christchurch, NZ | 15 |
| Nanjing, CN | 12 |
| Wuhan, CN | 12 |
| Jishou Universitylocation not on record | 11 |
| Wuhan, CN | 11 |
| Nanchong, CN | 10 |
| Xian, CN | 10 |
| Southwest Forestry Collegelocation not on record | 10 |
| Guiyang, CN | 9 |
| Xining, CN | 8 |
| Chongqing Natural History Museumlocation not on record | 7 |
| Zhuzhou, CN | 7 |
| Yunnan Universitylocation not on record | 6 |
| Strecker Museum, Baylor Universitylocation not on record | 6 |
| Shanghai, CN | 6 |
| Ischia Marine Centrelocation not on record | 6 |
| Hangzhou, CN | 5 |
| Guangzhou, CN | 5 |
| Guiyang, CN | 5 |
| University of Stellenboschlocation not on record | 4 |
| “Manash Kozybayev North Kazakhstan University" NPLClocation not on record | 4 |
| Xian, CN | 3 |
| Central China Agricultural Universitylocation not on record | 3 |
| Chongqing Museumlocation not on record | 3 |
| Xiamen, CN | 3 |
| Santa Barbara, US | 3 |
| Chinese Academy of Forestrylocation not on record | 3 |
| Changsha, CN | 3 |
| Bronx, US | 2 |
| Inner Mongolia Universitylocation not on record | 2 |
| Guangxi Agricultural Universitylocation not on record | 2 |
| Hangzhou Normal Collegelocation not on record | 2 |
| Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record | 2 |
| Tianjin Natural History Museumlocation not on record | 2 |
| Jiangxi Agricultural Universitylocation not on record | 2 |
| CASlocation not on record | 2 |
| Beijing, CN | 2 |
| Wellington, NZ | 2 |
| MeiseBGlocation not on record | 2 |
| Jiangxi Universitylocation not on record | 2 |
| Museo Entomologico de Leonlocation not on record | 1 |
| San Sebastián, ES | 1 |
| Nanyue Arboretumlocation not on record | 1 |
| Guizhou Forestry Schoollocation not on record | 1 |
| College Park, US | 1 |
| Museum of the Rockieslocation not on record | 1 |
| Cambridge, US | 1 |
| Brussel, BE | 1 |
| Philadelphia, US | 1 |
| Toronto, CA | 1 |
| Vancouver, CA | 1 |
| Beijing Natural History Museumlocation not on record | 1 |
| Adam Mickiewicz University in Poznańlocation not on record | 1 |
| FFPRIlocation not on record | 1 |
| Minia, EG | 1 |
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Where the DNA of Stranvaesia davidiana 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
Where its DNA was found
How strong is each trace?
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.