Castanopsis sieboldii
(Makino) Hatus. · speciesAt a glance
Sources11 archives
Databases and archives Castanopsis sieboldii's data was compiled from.
WikipediaWikimedia Foundation6 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility1 214 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI22 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↗
WikidataWikimedia Foundationstructured facts↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Castanopsis sieboldii, also known as the Itajii chinkapin or Itajii, is a species of evergreen tree that lives in subtropical eastern Asia. This is a climax species that is commonly found in the Japanese temperate rainforest. Specimens are also present within the forest area of the Tokyo Imperial Palace. Castanopsis sieboldii was once thought to be a subspecies of the similar Castanopsis cuspidata. Plants and animals associated with this tree include: Aspidistra elatior, the cast-iron plant, grows in the understorey. Acrocercops mantica, Chrysocercops castanopsidis, and Lymantria albescens larvae of these Asian moths likely mine the leaves. Amantis nawai, a small praying mantis species native to Eastern Asia is known to live around C. sieboldii where it eats insects. Okinawa rail, a Japanese bird, lives among these trees.
No narrative description available for this taxon yet.
Size & morphology1
Life cycle & reproduction4
Diet & foraging1
Habitat & environment6
Physiology & chemistry3
Compounds documented for Castanopsis sieboldii across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds29 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1R,2R,19R,36R,42R,43S,48R,49S,55R)-42-(3,4-dihydroxyphenyl)-7,8,9,12,13,14,24,25,26,29,30,31,34,43,46-pentadecahydroxy-3,17,20,37,41,50,53-heptaoxadodecacyclo[26.21.3.333,49.111,15.02,19.05,10.022,27.032,52.036,48.038,47.040,45.036,55]hexapentaconta-5,7,9,11(56),12,14,22,24,26,28(52),29,31,33,38(47),39,45-hexadecaene-4,16,21,35,51,54-hexone | present | LOTUS | |
| (1R,2R,19R,36S,43S,44R,48R,49R,55R)-44-(3,4-dihydroxyphenyl)-7,8,9,12,13,14,24,25,26,29,30,31,34,40,43-pentadecahydroxy-3,17,20,37,45,50,53-heptaoxadodecacyclo[26.21.3.333,49.111,15.02,19.05,10.022,27.032,52.036,48.038,47.041,46.036,55]hexapentaconta-5,7,9,11(56),12,14,22,24,26,28(52),29,31,33,38(47),39,41(46)-hexadecaene-4,16,21,35,51,54-hexone | present | LOTUS | |
| 1-O-Galloylpedunculagin | present | LOTUS | |
| 3,4-Di-o-galloylshikimicacid | present | LOTUS | |
| 3,5-Di-O-galloylshikimic acid | present | LOTUS | |
| 3-O-Galloylshikimic Acid | present | LOTUS | |
| 42-(3,4-Dihydroxyphenyl)-7,8,9,12,13,14,24,25,26,29,30,31,34,43,46-pentadecahydroxy-3,17,20,37,41,50,53-heptaoxadodecacyclo[26.21.3.333,49.111,15.02,19.05,10.022,27.032,52.036,48.038,47.040,45.036,55]hexapentaconta-5,7,9,11(56),12,14,22,24,26,28(52),29,31,33,38(47),39,45-hexadecaene-4,16,21,35,51,54-hexone | present | LOTUS | |
| 44-(3,4-Dihydroxyphenyl)-7,8,9,12,13,14,24,25,26,29,30,31,34,40,43-pentadecahydroxy-3,17,20,37,45,50,53-heptaoxadodecacyclo[26.21.3.333,49.111,15.02,19.05,10.022,27.032,52.036,48.038,47.041,46.036,55]hexapentaconta-5,7,9,11(56),12,14,22,24,26,28(52),29,31,33,38(47),39,41(46)-hexadecaene-4,16,21,35,51,54-hexone | present | LOTUS | |
| [(2R,3S,4S,5R,6S)-6-[2,6-dihydroxy-4-(hydroxymethyl)phenoxy]-3,4,5-trihydroxyoxan-2-yl]methyl 3,4,5-trihydroxybenzoate | present | LOTUS | |
| [(2R,3S,4S,5R,6S)-6-[2,6-dihydroxy-4-[(3,4,5-trihydroxybenzoyl)oxymethyl]phenoxy]-3,4,5-trihydroxyoxan-2-yl]methyl 3,4,5-trihydroxybenzoate | present | LOTUS |
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 Castanopsis sieboldii 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 Castanopsis sieboldii 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
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).
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.
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 214 records
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 institutions21 of 40 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Odawara, JP | 126 |
| Bando, JP | 62 |
| Toyama, JP | 38 |
| Sanda, JP | 34 |
| Nagatoro-machi, Chichibu-gun, JP | 31 |
| FFPRIlocation not on record | 26 |
| Nagano City, JP | 23 |
| Kochi, JP | 21 |
| Osaka, JP | 14 |
| KR | 11 |
| NSMKlocation not on record | 10 |
| Universidad Católica de Santa Maríalocation not on record | 9 |
| Taipei, TW | 9 |
| Herbarium of the Department of Botany, University of Tokyolocation not on record | 8 |
| JP | 6 |
| Kagoshima, JP | 5 |
| KOMlocation not on record | 5 |
| KURAlocation not on record | 5 |
| Parthenon Tama History Museumlocation not on record | 5 |
| Tomioka, JP | 4 |
| Tokushima, JP | 3 |
| Museum of the Rockieslocation not on record | 3 |
| Paris, FR | 3 |
| Otaru, JP | 3 |
| Ann Arbor, US | 3 |
| Toyota city nature sanctuarylocation not on record | 3 |
| National Institute of Biological Resourceslocation not on record | 2 |
| Omachi Alpine Museumlocation not on record | 2 |
| University of Stellenboschlocation not on record | 2 |
| SSNHlocation not on record | 2 |
| Ishikawa Museum of Natural Historylocation not on record | 2 |
| Sugadaira Research Station, Mountain Science Center, University of Tsukubalocation not on record | 2 |
| Fukushima Universitylocation not on record | 2 |
| Bronx, US | 2 |
| Edinburgh, GB | 2 |
| Oiso Municipal Museumlocation not on record | 1 |
| Auckland, NZ | 1 |
| Beijing, CN | 1 |
| Museum Of Natural And Environmental History, Shizuokalocation not on record | 1 |
| NIFSlocation not on record | 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 Castanopsis sieboldii 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?
Modelled climatemodelled
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.