Carya alba
(L.) Nutt. · speciesAt a glance
Sources12 archives
Databases and archives Carya alba's data was compiled from.
WikipediaWikimedia Foundation4 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility297 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI14 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics9 specimens↗
NCBIUS National Library of Medicinesequences↗
LOTUSNatural Products (Wikidata)compounds↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
CCDBChromosome Counts DB · Tel Aviv U.genome & karyotype↗
PloiDBPloidy Databasegenome & karyotype
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Carya tomentosa, (mockernut hickory, mockernut, white hickory, whiteheart hickory, hognut, bullnut) is a tree in the Juglandaceae or walnut family. The most abundant of the hickories, common in the eastern half of the US, it is long lived, sometimes reaching the age of 500 years. A straight-growing hickory, a high percentage of its wood is used for products where strength, hardness, and flexibility are needed. The wood makes excellent fuel wood, as well. The leaves turn yellow in Autumn. The species' name comes from the Latin word tomentum, meaning "covered with dense, short hairs," referring to the underside of the leaves, which help identify the species. Also called the white hickory due to the light color of the wood, the common name mockernut likely refers to the would-be nut eater, who would struggle to crack the thick shell only to find a small, unrewarding nut inside.
No narrative description available for this taxon yet.
Size & morphology4
Life cycle & reproduction25
Diet & foraging1
Habitat & environment24
Physiology & chemistry26
Uses & economy16
Other traits7
Compounds documented for Carya alba across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile3 classes
Documented compounds6 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (1R,3aS,5aR,5bR,7aR,9R,11aR,11bS,13aR,13bR)-9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-prop-1-en-2-yl-1,2,3,4,5,6,7,7a,9,10,11,11b,12,13,13a,13b-hexadecahydrocyclopenta[a]chrysene-3a-carboxylic acid | present | NPASS | |
| (4S,6R)-6-[(1E,4R,6S,7E)-4,6-dimethoxy-8-phenylocta-1,7-dienyl]-4-hydroxyoxan-2-one | present | LOTUS | |
| Cryptofolione | present | LOTUS | |
| Epibetulinic Acid | present | NPASS | |
| FVWJYYTZTCVBKE-HOSPYWTJSA-N | present | NPASS | |
| Juglone | 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 alba 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 alba 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 644×CCDB · eflora · CCDB · book-fedorov · CCDB · book-atlas-flowering-plants
polyploid inferred1×PloiDB · genus-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 type297 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.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions31 of 50 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| Fayetteville, US | 44 |
| Tempe, US | 25 |
| Morgantown, US | 14 |
| University of Arizona, Laboratory of Tree-Ring Researchlocation not on record | 14 |
| Philadelphia, US | 12 |
| Jena Microbial Resource Collectionlocation not on record | 11 |
| Norfolk, US | 11 |
| US | 9 |
| Macomb, US | 7 |
| Tall Timbers Research Stationlocation not on record | 7 |
| Western Carolina Universitylocation not on record | 6 |
| Chongqing Museumlocation not on record | 6 |
| Little Rock, US | 6 |
| San Angelo, US | 6 |
| Fort Worth, US | 5 |
| University of Southern Mississippilocation not on record | 4 |
| AUAlocation not on record | 4 |
| Bangkok, TH | 4 |
| Conway, US | 3 |
| Columbia, US | 3 |
| Chapel Hill, US | 3 |
| Moscow State Universitylocation not on record | 3 |
| BAYLUlocation not on record | 3 |
| Williamsburg, US | 3 |
| College Park, US | 3 |
| US | 3 |
| Mohonk Preservelocation not on record | 2 |
| University of North Carolina at Pembrokelocation not on record | 2 |
| New Haven, US | 2 |
| Mlocation not on record | 2 |
| Staten Island, US | 2 |
| Fairfax, US | 2 |
| Smithsonian Institutionlocation not on record | 2 |
| Miami, US | 2 |
| Waverly, US | 2 |
| Knoxville, US | 1 |
| Denver, US | 1 |
| FFPRIlocation not on record | 1 |
| Kingston, US | 1 |
| Paris, FR | 1 |
| Oskarshamn, SE | 1 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 1 |
| University of Tennessee at Chattanoogalocation not on record | 1 |
| Riverside, US | 1 |
| West Virginia Wesleyan Collegelocation not on record | 1 |
| Saint Louis, US | 1 |
| DOI/NPS, Greenbelt Parklocation not on record | 1 |
| Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowielocation not on record | 1 |
| Philadelphia, US | 1 |
| Chicago, US | 1 |
Where the DNA of Carya alba 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.