Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
NarrativeWikipediaarticle
Traits & measurements3 literature sources16 traits
Occurrence & distributionGBIF470 records
DNA & barcodingNCBIsequences
Genome at a glanceCCDB2n = 40
01Narrative
Dioscorea trifida, l’igname cousse-couche, est une espèce de plantes à fleurs monocotylédones de la famille des Dioscoreaceae, originaire d'Amérique centrale et d'Amérique du Sud. L'igname cousse-couche est une plante herbacée dioïque, vivace, grimpante, qui produit un tubercule souterrain comestible. Les feuilles alternes sont grandes, jusqu'à 25 cm de long, au limbe profondément divisé en trois à sept segments pointus. Les fruits non comestibles sont des capsules à trois ailes, contenant une graine dans chaque aile.
No narrative description available for this taxon yet.
Habitat GIFTCerrado (lato sensu), Floresta de Terra Firme
Woodinessnon-woody
Physiology & chemistry1
Nitrogen fixingnon_nitrogen_fixer
05DNA & barcoding7 sequences
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 Dioscorea trifida has left across the world's sequence archives.
At a glance
Marker genes2
GenBank sequences7
The DNA barcodea real sequence read deposited for this species
★ 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.
★matK3★rbcL4
plant barcode
06Genome at a glanceCCDB
The complete instruction manualDioscorea trifida 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.
Chromosomes2n = 40 n = 20
Chromosome-count records — grouped by value · 2n = full set, n = gamete · click a value for sources & references
2n 401×CCDB · Automatic manuscript search
CCDB · Automatic manuscript search — M. Bousalem,V. Viader,C. Mariac,R. Gomez,I. Hochu,S. Santoni and J. David. 2010. "Evidence of diploidy in the wild Amerindian yam, a putative progenitor of the endangered species Dioscorea trifida (Dioscoreaceae).". Genome 53 5:371-83.
08Occurrence & distribution
Record type470 records
Wild obs. + sensor39
Museum / vouchered378
Cultivated / captive2
Other51
Origin
Native49
Range
Area of Occupancy AOO1 128 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 accuracy41% within 1 km
≤100 m 6≤1 km 5≤10 km 4>10 km 12
27 georeferenced · 12 without coordinates
Open the mapobservation + sensor39
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 accuracy22% within 1 km
≤100 m 1≤1 km 8≤10 km 27>10 km 5
41 georeferenced · 337 without coordinates
Open the institutions mapphysical evidence378
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 2 records without
Open the mapnot free-living2
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 institutions27 of 67 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Saint Louis, US
62
Instituto Amazónico de Investigaciones Científicas - SINCHIlocation not on record
30
Bronx, US
23
Universidad Nacional de Colombia (UNAL)location not on record
19
Cenargenlocation not on record
19
Brasília, BR
16
Université de Bordeauxlocation not on record
14
University of Stellenboschlocation not on record
14
Kew, GB
10
QCNElocation not on record
8
JBRJlocation not on record
7
St. Augustine, TT
7
Museo Nacional de Costa Rica (MNCR)location not on record
7
National Biodiversity Institute, Costa Ricalocation not on record
6
South Kensington, GB
6
Chaguaramas, TT
6
La Paz, BO
5
IPA/SPlocation not on record
4
UFMSlocation not on record
4
Brasília, BR
4
Instituto Nacional de Pesquisas da Amazônia (INPA)location not on record
4
Santa Cruz de la Sierra, BO
4
UnBlocation not on record
4
Universidad de Antioquia (UdeA)location not on record
3
Pontificia Universidad Javeriana (PUJ)location not on record
3
Ulocation not on record
3
Loja, EC
3
San José, CR
3
Embrapa Amazônia Oriental, Ministry of Agriculturelocation not on record
3
Paris, FR
2
UNITINSlocation not on record
2
Museum of Zoologylocation not on record
2
Bloomington, US
2
UEPAlocation not on record
2
Institut fur Allgemeine Mikrobiologielocation not on record
2
Quito, EC
2
Aarhus, DK
2
Museu Paraense Emílio Goeldilocation not on record
2
Istituto Agrario Castelnuovolocation not on record
2
HACAMlocation not on record
1
UFMGlocation not on record
1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record
1
San Isidro, AR
1
Mérida, MX
1
BAYLUlocation not on record
1
Jataí / Setor Industrial, BR
1
UFPRlocation not on record
1
Plocation not on record
1
Mexico City, MX
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
Institut de Recherche pour le Developpement (IRD)location not on record
1
UNESP-RClocation not on record
1
Chongqing Museumlocation not on record
1
VENlocation not on record
1
Instituto para la Investigación y la Preservación del Patrimonio Cultural y Natural del Valle del Cauca - INCIVAlocation not on record
1
Station d'Ecologie de Lamtolocation not on record
1
Tapachula, MX
1
Xiamen, CN
1
Tampa, US
1
ESALQlocation not on record
1
Herbario MAT de la Universidad Politécnica Estatal del Carchilocation not on record
1
Berlin, DE
1
Chicago, US
1
Universiti Sains Malaysialocation not on record
1
arosemena tola, EC
1
HUT Culture Collectionlocation not on record
1
León, NI
1
67 institutions · 349 of 378 vouchered records shown · 29 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility470 records↗
NCBIUS National Library of Medicinesequences↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗