Tacca leontopetaloides
(L.) Kuntze · speciesAt a glance
Sources15 archives
Databases and archives Tacca leontopetaloides's data was compiled from.
WikipediaWikimedia Foundation13 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility4 345 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI14 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics21 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↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Tacca leontopetaloides is a species of flowering plant in the yam family Dioscoreaceae. It is native to Island Southeast Asia but have been introduced as canoe plants throughout the Indo-Pacific tropics by Austronesian peoples during prehistoric times. They have become naturalized to tropical Africa, South Asia, northern Australia, and Oceania. Common names include Polynesian arrowroot, Fiji arrowroot, East Indies arrowroot, and pia.
No narrative description available for this taxon yet.
Size & morphology20
Life cycle & reproduction10
Diet & foraging1
Habitat & environment14
Physiology & chemistry2
Compounds documented for Tacca leontopetaloides across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile3 classes
Documented compounds11 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1S,2R,2'R,4S,6S,7S,8R,9S,12S,13R,16S)-2'-(hydroxymethyl)-7,9,13-trimethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-18-ene-6,6'-oxane]-2',16-diol | present | LOTUS | |
| (1S,2R,2'S,4S,6S,7S,8R,9S,12S,13R,16S)-2'-(hydroxymethyl)-7,9,13-trimethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-18-ene-6,6'-oxane]-2',16-diol | present | LOTUS | |
| (1S,2S,4S,5'R,6R,7S,8R,9S,12S,13R,16S,18R,19R)-16,18-dihydroxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.7.0.02,9.04,8.013,18]nonadecane-6,2'-oxane]-19-carbaldehyde | present | LOTUS | |
| (1S,2S,4S,6R,7R,8S,9R,12S,13S,16S)-5',5'-bis(hydroxymethyl)-7,9,13-trimethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-18-ene-6,2'-oxolane]-16-ol | present | LOTUS | |
| (1S,2S,4S,6R,7S,8R,9S,12S,13R,16S)-3'-(hydroxymethyl)-7,9,13-trimethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-18-ene-6,6'-oxane]-3',16-diol | present | LOTUS | |
| (1S,2S,4S,6R,7S,8R,9S,12S,13R,16S)-5',5'-bis(hydroxymethyl)-7,9,13-trimethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icos-18-ene-6,2'-oxolane]-16-ol | present | LOTUS | |
| (3beta,22alpha,25S)-22,25-Epoxyfurost-5-ene-3,26-diol | present | LOTUS | |
| Coumestrol | present | NPASS | |
| Diosgenin | present | LOTUS | |
| Isonuatigenin | 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 Tacca leontopetaloides 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 Tacca leontopetaloides 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).
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 303×GoaT · Kew Plant DNA C-values Database · CCDB · book-atlas-flowering-plants · CCDB · kew
diploid1×GoaT · Kew Plant DNA C-values Database
polyploid inferred1×PloiDB · family-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 type4 345 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 institutions34 of 77 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Palmerston, AU | 126 |
| Brisbane, AU | 122 |
| Kew, GB | 83 |
| Canberra, AU | 78 |
| Museo Entomologico de Leonlocation not on record | 64 |
| Université de Strasbourglocation not on record | 56 |
| Smithfield, AU | 54 |
| MeiseBGlocation not on record | 48 |
| Saint Louis, US | 45 |
| South Kensington, GB | 44 |
| Honolulu, US | 39 |
| Kensington, AU | 35 |
| BISHlocation not on record | 33 |
| Bronx, US | 30 |
| Mount Annan, AU | 18 |
| HNBlocation not on record | 16 |
| University of Stellenboschlocation not on record | 13 |
| Auckland, NZ | 12 |
| LSFlocation not on record | 12 |
| LSF/FSA/UAClocation not on record | 11 |
| Paris, FR | 10 |
| Plocation not on record | 10 |
| Parc Botanique et Zoologique de Tsimbazaza (PBZT)location not on record | 9 |
| Adelaide, AU | 9 |
| Taipei, TW | 8 |
| Frankfurt am Main | 7 |
| John T. Waterhouse Herbariumlocation not on record | 7 |
| James Cook Townsvillelocation not on record | 7 |
| Xiamen, CN | 7 |
| Herbier National du Gabonlocation not on record | 7 |
| Baroda, IN | 6 |
| TNMlocation not on record | 6 |
| Uppsala, SE | 6 |
| Instituto de Investigação Científica Tropicallocation not on record | 6 |
| MAlocation not on record | 5 |
| LBVlocation not on record | 4 |
| Philadelphia, US | 4 |
| Centre Suisse de Recherches Scientifiques en Côte d’Ivoirelocation not on record | 4 |
| Centre National de Floristique - Université Félix HOUPHOUËT-BOIGNYlocation not on record | 4 |
| Leiden University Medical Centerlocation not on record | 4 |
| CNF-UFHBlocation not on record | 4 |
| Monastir, TN | 4 |
| Glocation not on record | 3 |
| Moscow State Universitylocation not on record | 3 |
| Centre National de la Recherche Appliquée au Developement Rurallocation not on record | 3 |
| Institut de Recherche Agronomique de Guinée (IRAG)location not on record | 2 |
| CASlocation not on record | 2 |
| Arusha, TZ | 2 |
| Yaoundé, CM | 2 |
| Armidale, AU | 2 |
| GZUlocation not on record | 2 |
| Brussels, BE | 2 |
| TAFORI-LSRClocation not on record | 2 |
| Institut Botanique Ake-Assi d'Andokoilocation not on record | 2 |
| CJBGlocation not on record | 2 |
| Seychelles National Herbariumlocation not on record | 1 |
| 黔东南州民族医药研究所标本室location not on record | 1 |
| Smithsonian Institution, National Museum of Natural Historylocation not on record | 1 |
| Buffelskloof Private Nature Reserve, Herbariumlocation not on record | 1 |
| Hobart, AU | 1 |
| Gujarat Biodiversity Gene Banklocation not on record | 1 |
| Taipei, TW | 1 |
| Pretoria, ZA | 1 |
| UJLOGlocation not on record | 1 |
| University of the Sunshine Coastlocation not on record | 1 |
| Guangzhou, CN | 1 |
| Kagoshima, JP | 1 |
| CMULlocation not on record | 1 |
| Berlin, DE | 1 |
| Dresden, DE | 1 |
| IPA/SPlocation not on record | 1 |
| Zürich, CH | 1 |
| Christchurch, NZ | 1 |
| Centro de Biotecnologia e Quimica-CEBIQlocation not on record | 1 |
| Embrapa Agrobiology Diazothrophic Microbial Culture Collectionlocation not on record | 1 |
| BGPAlocation not on record | 1 |
| Gump Stationlocation 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 Tacca leontopetaloides 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.