Pteris semipinnata
speciesAt a glance
Sources12 archives
Databases and archives Pteris semipinnata's data was compiled from.
WikipediaWikimedia Foundation3 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 023 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI3 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics3 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↗
Paleobiology DatabasePBDB consortiumfossil record↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Pteris semipinnata is a fern species in the Pteridoideae subfamily of the Pteridaceae. It is mainly distributed in tropical regions, such as southern China, the Philippines, Vietnam, Laos, Thailand, Myanmar, Malaysia, Sri Lanka and northern India. It is also found in Japan (Ryukyu Islands) and Bhutan. Pteris semipinnata grows in open forests, on the acid soil near streams or rocks, below 900 meters above sea level. It is native to Hong Kong and Taiwan. It should also be native to China (According to the description of Flora of China (series) for the content of "Flora of China"). In any case, Hong Kong is currently a city in China, so it can be said that Pteris semipinnata is native to China.
No narrative description available for this taxon yet.
Size & morphology1
Life cycle & reproduction2
Habitat & environment8
Physiology & chemistry3
Compounds documented for Pteris semipinnata across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds223 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (+)-Isolariciresinol-3alpha-O-beta-D-glucopyranoside | present | NPASS | |
| (+)-Leucocyanidin | present | NPASS | |
| (-)-Caryophyllene | present | NPASS | |
| (-)-Pinoresinol | present | NPASS | |
| (1S,3R,4R,5R)-1,3,4-trihydroxy-5-[3-(4-hydroxy-3-methoxyphenyl)prop-2-enoyloxy]cyclohexane-1-carboxylic acid | present | NPASS | |
| (1S,3R,4R,5R)-3-(3-(3,4-Dihydroxyphenyl)Prop-2-Enoyloxy)-1,4,5-Trihydroxycyclohexane-1-Carboxylic Acid | present | NPASS | |
| (1Z,4E)-germacrene B | present | NPASS | |
| (2R)-1-[2,4-dihydroxy-6-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]-2-methylbutan-1-one | present | NPASS | |
| (2R,3R,4S,5S,6R)-2-[(E)-5-[(1R,3S,4aR,6S,8aS)-3,6-dihydroxy-5,5,8a-trimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]-3-methylpent-2-enoxy]-6-(hydroxymethyl)oxane-3,4,5-triol | present | LOTUS | |
| (2S)-Isoxanthohumol | 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 Pteris semipinnata 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 Pteris semipinnata 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 1169×CCDB · ipcn-api-dl · CCDB · book-ipcn67-71 · CCDB · book-LoveLove1977 +2
n 585×CCDB · book-ipcn65 · CCDB · ipcn-api-dl · CCDB · book-ipcn66 +2
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 type4 023 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 institutions51 of 78 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 | 1 222 |
| Kochi, JP | 100 |
| Beijing, CN | 95 |
| Nishihara, JP | 81 |
| Taipei, TW | 79 |
| Guilin, CN | 49 |
| National Museum of Natural Sciencelocation not on record | 46 |
| Guangzhou, CN | 40 |
| Kew, GB | 39 |
| Odawara, JP | 37 |
| South Kensington, GB | 31 |
| Nanjing, CN | 31 |
| Saint Louis, US | 28 |
| TAIElocation not on record | 26 |
| Chicago, US | 25 |
| Shanghai, CN | 18 |
| Wuhan, CN | 15 |
| Nishihara, JP | 15 |
| Paris, FR | 13 |
| Xiamen, CN | 11 |
| Taipei, TW | 11 |
| Canberra, AU | 9 |
| Jiangxi Universitylocation not on record | 9 |
| Bronx, US | 9 |
| Guangxi Institute of Traditional Medical and Pharmaceutical Scienceslocation not on record | 8 |
| Hangzhou, CN | 8 |
| Yangling, CN | 7 |
| Shanghai, CN | 7 |
| Brisbane, AU | 6 |
| Wuhan, CN | 5 |
| Seoul, KR | 5 |
| Elocation not on record | 5 |
| Nagano City, JP | 5 |
| LDlocation not on record | 5 |
| Chengdu, CN | 4 |
| Toyama, JP | 4 |
| Kawasaki Shi Tama Ku, JP | 4 |
| Ann Arbor, US | 4 |
| Chengdu, CN | 3 |
| Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record | 3 |
| Cambridge University Herbariumlocation not on record | 3 |
| Durham, US | 3 |
| Kagoshima, JP | 3 |
| Guiyang, CN | 3 |
| Zhejiang Universitylocation not on record | 3 |
| Guiyang, CN | 3 |
| Yunnan Universitylocation not on record | 3 |
| Philadelphia, US | 2 |
| Zhuzhou, CN | 2 |
| Canadian Department of Agriculturelocation not on record | 2 |
| South China Normal Universitylocation not on record | 2 |
| Kyoto Universitylocation not on record | 2 |
| Ischia Marine Centrelocation not on record | 2 |
| Bloomington, US | 2 |
| Tokushima, JP | 2 |
| Stockholm, SE | 1 |
| Corvallis, US | 1 |
| Auckland, NZ | 1 |
| Central China Normal Universitylocation not on record | 1 |
| Herbarium of the Department of Botany, University of Tokyolocation not on record | 1 |
| University of Stellenboschlocation not on record | 1 |
| KIRMlocation not on record | 1 |
| Fukushima Universitylocation not on record | 1 |
| BMlocation not on record | 1 |
| Kunming, CN | 1 |
| Burlington, US | 1 |
| Jishou Universitylocation not on record | 1 |
| Guangzhou, CN | 1 |
| Beijing Normal Universitylocation not on record | 1 |
| Guangxi Agricultural Universitylocation not on record | 1 |
| Zhengzhou, CN | 1 |
| SCAUlocation not on record | 1 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 1 |
| WTUlocation not on record | 1 |
| Xiangtan City, CN | 1 |
| Vietnam National Museum of Naturelocation not on record | 1 |
| Chengdu, CN | 1 |
| Madison, US | 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 Pteris semipinnata 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.