Carya illinoinensis
(Wangenh.) K.Koch · speciesAt a glance
Sources12 archives
Databases and archives Carya illinoinensis's data was compiled from.
WikipediaWikimedia Foundation19 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility10 982 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI10 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics13 specimens↗
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
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.
The pecan (Carya illinoinensis) is a species of hickory native to the southern United States and northern Mexico in the region of the Mississippi River. The tree is cultivated for its seed in the southern United States, primarily in Georgia, New Mexico,and Texas, as well as Mexico, which produces nearly half of the world total. The seed is an edible nut used as a snack and in various recipes, such as praline candy and pecan pie. The pecan, in various aspects, is included in state symbols of Alabama, Arkansas, California, Oklahoma, and Texas.
No narrative description available for this taxon yet.
Size & morphology4
Life cycle & reproduction28
Diet & foraging1
Habitat & environment27
Physiology & chemistry22
Uses & economy16
Other traits7
Compounds documented for Carya illinoinensis across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds44 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (+)-lariciresinol | present | LOTUS | |
| (+)-Pinoresinol | present | LOTUS | |
| (+)-Secoisolariciresinol | present | LOTUS | |
| (+/-)-Laureline | present | LOTUS | |
| (-)-Matairesinol | present | LOTUS | |
| (S)-Boldine | present | LOTUS | |
| 17-Methoxy-3,5-dioxa-11-azapentacyclo[10.7.1.02,6.08,20.014,19]icosa-1(20),2(6),7,11,14(19),15,17-heptaene | present | LOTUS | |
| 2-(10-methoxynaphtho[2,1-g][1,3]benzodioxol-5-yl)-N,N-dimethylethanamine | present | LOTUS | |
| 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-3-[(2R,3R,4S,5S)-3,4,5-trihydroxyoxan-2-yl]oxychromen-4-one | present | LOTUS | |
| 2-(3,4-Dihydroxyphenyl)-7-hydroxy-3,5-dimethoxy-4H-1-benzopyran-4-one | 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 Carya illinoinensis 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 Carya illinoinensis 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 322×GoaT · Kew Plant DNA C-values Database · CCDB · ipcn-api-dl
diploid1×GoaT · Kew Plant DNA C-values Database
diploid inferred1×PloiDB · genus-scale
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 type10 982 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 institutions96 of 151 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Bronx, US | 91 |
| Fort Worth, US | 78 |
| Austin, US | 77 |
| Wuzhou, CN | 71 |
| Durango, MX | 57 |
| San Angelo, US | 42 |
| Saint Louis, US | 34 |
| Bloomington, US | 32 |
| University of Stellenboschlocation not on record | 27 |
| DOI/NPS, Mississippi National River & Recreation Arealocation not on record | 24 |
| Emporia, US | 22 |
| Jena Microbial Resource Collectionlocation not on record | 22 |
| Texas Lutheran Universitylocation not on record | 21 |
| BAYLUlocation not on record | 20 |
| San Diego, US | 20 |
| Mexico City, MX | 20 |
| Pittsburg, US | 19 |
| Canadian Department of Agriculturelocation not on record | 17 |
| Jackson, US | 17 |
| Williamsburg, US | 14 |
| US | 14 |
| Bangkok, TH | 14 |
| Mississippi State, US | 13 |
| Fayetteville, US | 13 |
| Davis, US | 13 |
| Riverside, US | 12 |
| Chongqing Museumlocation not on record | 11 |
| Beijing, CN | 11 |
| Tuscaloosa, US | 10 |
| Claremont, US | 10 |
| ASUlocation not on record | 9 |
| Museum of the Rockieslocation not on record | 9 |
| MeiseBGlocation not on record | 8 |
| GAlocation not on record | 8 |
| Stephenville, US | 8 |
| Juriquilla, MX | 7 |
| Rotorua, NZ | 7 |
| China Agricultural Universitylocation not on record | 7 |
| Columbia, US | 7 |
| Blumenau, BR | 6 |
| València, ES | 5 |
| Guangzhou, CN | 5 |
| CICYTEXlocation not on record | 5 |
| PRClocation not on record | 5 |
| Millersville, US | 5 |
| Phoenix, US | 5 |
| Denton, US | 5 |
| Chapel Hill, US | 5 |
| Fredericksburg, US | 5 |
| Nanjing, CN | 4 |
| Little Rock, US | 4 |
| Valdosta State Universitylocation not on record | 4 |
| AUAlocation not on record | 4 |
| Clemson, US | 4 |
| Chadron, US | 4 |
| Autlán de Navarro, MX | 4 |
| Chapingo, MX | 4 |
| Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record | 4 |
| Museo Nacional de Costa Rica (MNCR)location not on record | 4 |
| GB | 3 |
| UTFPR-DVlocation not on record | 3 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 3 |
| Wlocation not on record | 3 |
| Fairfax, US | 3 |
| DOI/NPS, Greenbelt Parklocation not on record | 3 |
| Russellville, US | 3 |
| Tall Timbers Research Stationlocation not on record | 3 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 3 |
| Lincoln, US | 3 |
| College Park, US | 3 |
| Kew, GB | 3 |
| Dekalb, US | 3 |
| Tampa, US | 3 |
| Ivano-Frankivsk, UA | 3 |
| BISHlocation not on record | 2 |
| Moscow, US | 2 |
| UTFPR-CPlocation not on record | 2 |
| San Francisco de Campeche, MX | 2 |
| Cascavel, BR | 2 |
| Severin-McDaniel Insect Collectionlocation not on record | 2 |
| Edmonton, CA | 2 |
| Longwood Universitylocation not on record | 2 |
| PUC-RSlocation not on record | 2 |
| Herbarium of South China Botanical Gardenlocation not on record | 2 |
| Santa Cruz, US | 2 |
| Denver, US | 2 |
| Campo Mourão, BR | 2 |
| Northridge, US | 2 |
| University of Southern Mississippilocation not on record | 2 |
| Lubbock, US | 2 |
| Conway, US | 2 |
| Pelotas, BR | 2 |
| BDBClocation not on record | 2 |
| EL PASO, US | 2 |
| Montréal, CA | 1 |
| Sanda, JP | 1 |
| Audubon Society -- Silver Bluff Audubon Center and Sanctuarylocation not on record | 1 |
| JBRJlocation not on record | 1 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 1 |
| Tempe, US | 1 |
| Entomological Society of Latvialocation not on record | 1 |
| Philadelphia, US | 1 |
| Smithsonian Institution, National Museum of Natural Historylocation not on record | 1 |
| Tepatitlán de Morelos, MX | 1 |
| Orem, US | 1 |
| Fullerton, US | 1 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 1 |
| Giardini Botanici Hanburylocation not on record | 1 |
| Ciudad de México, MX | 1 |
| Santa Barbara, US | 1 |
| Minia, EG | 1 |
| Istituto Agrario Castelnuovolocation not on record | 1 |
| San Luis Obispo, US | 1 |
| Macomb, US | 1 |
| Asheville, US | 1 |
| Brookings, US | 1 |
| Fujian Institute of Subtropical Botanylocation not on record | 1 |
| Guiyang, CN | 1 |
| WNNUlocation not on record | 1 |
| Brasília, BR | 1 |
| Chengdu, CN | 1 |
| University of Alberta Museumslocation not on record | 1 |
| Durango, US | 1 |
| Linares, MX | 1 |
| Burlington, US | 1 |
| UEMlocation not on record | 1 |
| LINUlocation not on record | 1 |
| Guasave, MX | 1 |
| Austin, US | 1 |
| Durban, ZA | 1 |
| Flagstaff, US | 1 |
| UnBlocation not on record | 1 |
| Philadelphia, US | 1 |
| Chicago, US | 1 |
| USP-IBlocation not on record | 1 |
| Western Carolina Universitylocation not on record | 1 |
| Maringá, BR | 1 |
| Albuquerque, US | 1 |
| IAPlocation not on record | 1 |
| Conway, US | 1 |
| University of North Carolina at Pembrokelocation not on record | 1 |
| Barcelona, ES | 1 |
| Kirksville, US | 1 |
| UFSMlocation not on record | 1 |
| Provo, US | 1 |
| Durham, US | 1 |
| San Diego Natural History Museum, Herbariumlocation not on record | 1 |
| Xiamen, CN | 1 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 1 |
| Fredericton Stock Culture Collectionlocation not on record | 1 |
| Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation 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 Carya illinoinensis 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.