Quercus
genusAt a glance
Sources10 archives
Databases and archives Quercus's data was compiled from.
WikipediaWikimedia Foundation22 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility318 732 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI242 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics14 specimens↗
foodatlascompounds
LOTUSNatural Products (Wikidata)compounds↗
GRIN TaxonomyUSDA-ARSdistribution & uses↗
Paleobiology DatabasePBDB consortiumfossil record↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Quercus ×morehus,Carl B. Wolf, “California Plant Notes I, x Quercus morehus,” Occasional Papers, Rancho Santa Ana Botanic Garden of the Native Plants of California, Volume 1 (Number 1): pages 47-52 (1938) Abram's oak in Kellogg's original descriptionAlbert Kellogg, "On a new species of Oak, brought from Clear Lake by Mr. A. A. Veatch," Proceedings of the California Academy of Sciences, series 1, volume 2: page 36 (1863) (later called oracle oak by JepsonWillis Linn Jepson, A Manual of the Flowering Plants of California, p. 277 (genus Quercus and some other parts 1923, the rest 1925)), is a named hybrid between the red oaks Quercus kelloggii (California black oak) and Quercus wislizeni (interior live oak).Online link to The Jepson Manual eFlora = http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=40652 accessed 1 October 2015 Originally published as the unique species Quercus morehus by Kellogg, rather than as the hybrid it is called today, this tree is found in the US states of California and possibly southern Oregon,Online link to Consortium of Pacific Northwest Herbaria (specimens #1, #4-17, #19-30, #32-34) = http://www.pnwherbaria.org/data/results.php?DisplayAs=WebPage&ExcludeCultivated=Y&GroupBy=ungrouped&SortBy=Year&SortOrder=DESC&SearchAllHerbaria=Y&QueryCount=1&Family1=fagaceae&IncludeSynonyms1=Y&Genus1=quercus&Species1=morehus&Zoom=4&Lat=55&Lng=-135&PolygonCount=0 accessed 1 October 2015 usually where the territories of the purported parents overlap. Because the name Q. ×morehus was adopted prior to 1980 while Q. wislizeni and Quercus parvula were still considered conspecificKevin C. Nixon and Cornelius H. Muller, “New Names in California Oaks,” Novon, volume 4: pages 391-393 (1994) it is often applied not only to trees appearing intermediate in form between Q. kelloggii and Q. wislizeni but also those that could be Q. kelloggii × Q. parvula. Pending formal description the name Q. בwootteni’ (Wootten's oak) has been proposed for the California black oak (Q. kelloggii) × Shreve oak (Q. parvula var. shrevei) hybrid.Duncan A. Hauser, Al Keuter, John D. McVay, Andrew L. Hipp, and Paul S. Manos, The evolution and diversification of the red oaks of the California Floristic Province (Quercus section Lobatae, series Agrifoliae), American Journal of Botany, October 2017 104:1581-1595 Quercus ×morehus is a hybrid between a deciduous oak and an evergreen oak. Leaves are generally deciduous or partially deciduous and intermediate in form between Q. kelloggii and Q. wislizeni. Quercus morehus KelloggEdward L. Greene, Illustrations of West American Oaks, Vols. 1 & 2, Bosqui Engraving and Printing Co., San Francisco (1889-1890)
No narrative description available for this taxon yet.
No structured trait data for this taxon yet.
Compounds documented for Quercus across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Documented compounds64 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| CARBOHYDRATE | 62,310 mg/100g | FoodAtlas | |
| lipid | 16,200 mg/100g | FoodAtlas | |
| vanillic acid | 55.321 mg/100g | FoodAtlas | |
| procyanidin b2 | 12.625 mg/100g | FoodAtlas | |
| 3,5-di-o-caffeoyl quinic acid | 6.39 mg/100g | FoodAtlas | |
| ferulic acid | 4.529 mg/100g | FoodAtlas | |
| phloretin | 0.254 mg/100g | FoodAtlas |
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 Quercus 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.
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 periods (Jurassic, Cretaceous…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. The dashed rules marked ✦ are the five great mass extinctions. The solid bar is the fossil range: the span between the oldest and the youngest fossil that palaeontologists have assigned to Quercus. Above itBeside it, the bars count how many dated finds fall in each slice of time; the tallest bar is labelled, and heights use a square-root scale so that thin slices stay visible next to rich ones. Read this as how well each stretch of time is preserved and studied — thick bars mean plenty of the right kind of rock and plenty of collectors, which is related to, but not the same as, how common it actually was.
How it livedPBDB
Record type319 151 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 institutions222 of 376 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| University of Arizona, Laboratory of Tree-Ring Researchlocation not on record | 1 361 |
| Durango, MX | 924 |
| Görlitz, DE | 792 |
| Karlsruhe, DE | 747 |
| Museo Entomologico de Leonlocation not on record | 694 |
| Mlocation not on record | 474 |
| Vitoria, ES | 413 |
| Mexico City, MX | 394 |
| Berlin, DE | 360 |
| Paris, FR | 320 |
| BClocation not on record | 317 |
| Saint Louis, US | 276 |
| CICYTEXlocation not on record | 249 |
| San Diego, US | 211 |
| Shanghai, CN | 207 |
| Austin, US | 192 |
| Bronx, US | 179 |
| KR | 172 |
| Chengdu, CN | 163 |
| Museo Nacional de Costa Rica (MNCR)location not on record | 162 |
| University of Stellenboschlocation not on record | 161 |
| ASUlocation not on record | 158 |
| Museum of the Rockieslocation not on record | 156 |
| San Francisco, US | 148 |
| Kunming, CN | 140 |
| Guasave, MX | 132 |
| Riverside, US | 129 |
| Ciudad de México, MX | 119 |
| Santa Cruz, US | 106 |
| MAlocation not on record | 104 |
| National Biodiversity Institute, Costa Ricalocation not on record | 94 |
| Guatemala City, GT | 91 |
| Universidade de Lisboa, Museu Bocagelocation not on record | 91 |
| Olocation not on record | 81 |
| Adam Mickiewicz University in Poznańlocation not on record | 80 |
| Beijing, CN | 74 |
| Guangzhou, CN | 71 |
| Davis, US | 69 |
| M-Lichenslocation not on record | 68 |
| València, ES | 63 |
| Kew, GB | 59 |
| Chapel Hill, US | 59 |
| Uniwersytet Wrocławskilocation not on record | 58 |
| Santa Barbara, US | 57 |
| Tampa, US | 56 |
| DOI/NPS, Greenbelt Parklocation not on record | 51 |
| Philadelphia, US | 50 |
| MeiseBGlocation not on record | 50 |
| Wuhan, CN | 48 |
| Auckland, NZ | 48 |
| Claremont, US | 47 |
| CASlocation not on record | 47 |
| Canberra, AU | 44 |
| Staten Island, US | 44 |
| Fort Worth, US | 40 |
| Guangzhou, CN | 39 |
| Entomological Society of Latvialocation not on record | 39 |
| Rotorua, NZ | 39 |
| Anchorage, US | 38 |
| Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipaslocation not on record | 37 |
| San Sebastián, ES | 36 |
| Musee des Dinosaures d'Esperaza (Aude)location not on record | 35 |
| Ann Arbor, US | 34 |
| Austin, US | 34 |
| Mexico City, MX | 34 |
| Giardini Botanici Hanburylocation not on record | 34 |
| Puebla, MX | 33 |
| Phoenix, US | 32 |
| Mexico City, MX | 31 |
| PRClocation not on record | 31 |
| Wlocation not on record | 30 |
| Instituto de Investigaciones Biológicas, Universidad Veracruzana, Región Xalapalocation not on record | 29 |
| Seoul, KR | 28 |
| Moscow State Universitylocation not on record | 27 |
| Barcelona, ES | 26 |
| Autlán de Navarro, MX | 26 |
| MEXUlocation not on record | 26 |
| FFPRIlocation not on record | 25 |
| Yunnan Universitylocation not on record | 25 |
| Institut und Museum fuer Geologie und Palaeontologielocation not on record | 25 |
| Edinburgh, GB | 24 |
| Albuquerque, US | 23 |
| St. Paul, US | 23 |
| Tall Timbers Research Stationlocation not on record | 22 |
| Angwin, US | 22 |
| Bloomington, US | 22 |
| BAYLUlocation not on record | 21 |
| Bangkok, TH | 21 |
| Wuzhou, CN | 20 |
| Cambridge, US | 20 |
| Sede di Via Giorgio La Pira del Museo di Storia naturale di Firenze | Via Giorgio La Pira headquarter of the Natural History Museum in Florencelocation not on record | 20 |
| Linares, MX | 20 |
| Québec, CA | 19 |
| Emporia, US | 19 |
| Taipei, TW | 19 |
| Nanjing, CN | 19 |
| LDlocation not on record | 19 |
| Philadelphia, US | 19 |
| South Kensington, GB | 18 |
| Central China Normal Universitylocation not on record | 17 |
| Tomioka, JP | 17 |
| Bern, CH | 17 |
| College Park, US | 16 |
| BRNUlocation not on record | 16 |
| Jena Microbial Resource Collectionlocation not on record | 16 |
| Centro Cultural Santo Domingolocation not on record | 16 |
| EL PASO, US | 16 |
| Xining, CN | 16 |
| San Jose State University, Museum of Birds and Mammalslocation not on record | 16 |
| SLU Artdatabankenlocation not on record | 16 |
| KMNlocation not on record | 16 |
| Chongqing Museumlocation not on record | 16 |
| Instituto de Investigación de Recursos Biológicos Alexander von Humboldt (IAvH)location not on record | 15 |
| Denver, US | 15 |
| DOI/NPS, Mississippi National River & Recreation Arealocation not on record | 15 |
| Juriquilla, MX | 15 |
| Columbia, US | 14 |
| Port Elizabeth Museum (Bayworld)location not on record | 14 |
| Jackson, US | 14 |
| Zhengzhou, CN | 14 |
| Pullman, US | 14 |
| Allentown, US | 13 |
| Salamanca, ES | 13 |
| Sagamihara, JP | 13 |
| Millersville, US | 12 |
| Southwest Forestry Collegelocation not on record | 12 |
| GJOlocation not on record | 12 |
| Tuxtla Gutiérrez, MX | 12 |
| San Luis Obispo, US | 12 |
| Universidad del Pais Vasco (UPV/EHU)location not on record | 11 |
| Chinese Academy of Forestrylocation not on record | 11 |
| Guilin, CN | 11 |
| Washington, US | 11 |
| GZUlocation not on record | 11 |
| Madison, US | 11 |
| DOI/NPS, Little Rock Central High School National Historic Sitelocation not on record | 11 |
| Honolulu, US | 11 |
| BDBClocation not on record | 10 |
| Staatliches Museum fuer Naturkunde Karlsruhe (State Museum of Natural History)location not on record | 10 |
| Nanjing, CN | 10 |
| Miami, US | 10 |
| Ciudad de México, MX | 10 |
| Arcata, US | 9 |
| BMlocation not on record | 9 |
| Tlalnepantla, MX | 9 |
| US | 9 |
| Uniwersytet Marii Curie-Skłodowskiejlocation not on record | 9 |
| Flagstaff, US | 9 |
| Monastir, TN | 9 |
| GB | 9 |
| McWane Science Centerlocation not on record | 9 |
| Armidale, AU | 9 |
| Christchurch, NZ | 9 |
| Montecillo, Texcoco, MX | 8 |
| Alabama Museum of Natural Historylocation not on record | 8 |
| Uppsala, SE | 8 |
| Madrid, ES | 8 |
| Mohonk Preservelocation not on record | 8 |
| Canadian Department of Agriculturelocation not on record | 8 |
| Lanzhou, CN | 7 |
| Chicago, US | 7 |
| Boise, US | 7 |
| Sociedad para el Estudio de los Recursos Bióticos de Oaxaca, A. C.location not on record | 7 |
| GZFlocation not on record | 7 |
| Tapachula, MX | 7 |
| Dresden, DE | 7 |
| Xiamen, CN | 7 |
| San José, CR | 7 |
| Changsha, CN | 7 |
| Guizhou Forestry Schoollocation not on record | 7 |
| Burlington, US | 7 |
| Guangxi Agricultural Universitylocation not on record | 7 |
| Lubbock, US | 6 |
| Provincia di Livornolocation not on record | 6 |
| Toronto, CA | 6 |
| Nanjing, CN | 6 |
| Davenport, US | 6 |
| Cincinnati, US | 5 |
| Peking Universitylocation not on record | 5 |
| Hobart, AU | 5 |
| Northeast Institute of Geography and Agroecology, Chinese Academy of Scienceslocation not on record | 5 |
| GAlocation not on record | 5 |
| WTUlocation not on record | 5 |
| Mount Annan, AU | 5 |
| Denton, US | 5 |
| Kingston, US | 5 |
| FCMElocation not on record | 5 |
| Oskarshamn, SE | 5 |
| NO DISPONIBLElocation not on record | 5 |
| Université Lavallocation not on record | 5 |
| Long Beach, US | 5 |
| Universidad Nacional de Colombia (UNAL)location not on record | 5 |
| BISHlocation not on record | 5 |
| Longwood Universitylocation not on record | 5 |
| Córdoba, AR | 5 |
| Badajoz, ES | 5 |
| Smithfield, AU | 5 |
| Durham, US | 4 |
| National Institute of Biological Resourceslocation not on record | 4 |
| New Brunswick, US | 4 |
| Chicago, US | 4 |
| Zhuzhou, CN | 4 |
| Shanghai, CN | 4 |
| Fredericksburg, US | 4 |
| Xian, CN | 4 |
| Taipei, TW | 4 |
| Northridge, US | 4 |
| Chiba, JP | 4 |
| US | 4 |
| Minia, EG | 4 |
| Corvallis, US | 4 |
| Mérida, MX | 4 |
| Akita Prefectural Museumlocation not on record | 4 |
| Helsinki, FI | 4 |
| Jiangxi Agricultural Universitylocation not on record | 4 |
| Kochi, JP | 4 |
| Antiguo Cuscatlán, SV | 4 |
| San Diego Natural History Museumlocation not on record | 3 |
| Uniwersytet Śląski w Katowicachlocation not on record | 3 |
| Zapopan, MX | 3 |
| Mount Pleasant, US | 3 |
| Toyama, JP | 3 |
| San Angelo, US | 3 |
| Tuscaloosa, US | 3 |
| UEMlocation not on record | 3 |
| Catalina Island Conservancylocation not on record | 3 |
| Fukushima Universitylocation not on record | 3 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 3 |
| Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record | 3 |
| Awka, NG | 3 |
| Brisbane, AU | 3 |
| Tsukuba, JP | 3 |
| Victoria, CA | 3 |
| Turlock, US | 3 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 3 |
| Mississippi State, US | 3 |
| Asheville, US | 3 |
| Nagano City, JP | 3 |
| Tianjin Natural History Museumlocation not on record | 3 |
| Managua, NI | 3 |
| Universidad de La Salle (La Salle)location not on record | 3 |
| Culiacán, MX | 3 |
| Dekalb, US | 2 |
| Maringá, BR | 2 |
| BSBIlocation not on record | 2 |
| San Jose, US | 2 |
| Wellington, NZ | 2 |
| Madrid, ES | 2 |
| San Diego Natural History Museum, Herbariumlocation not on record | 2 |
| University of New Hampshirelocation not on record | 2 |
| University of Johannesburglocation not on record | 2 |
| Oswego, US | 2 |
| Kagoshima, JP | 2 |
| Bergen, NO | 2 |
| Vancouver, CA | 2 |
| New Haven, US | 2 |
| Urumqi, CN | 2 |
| Odawara, JP | 2 |
| Chapingo, MX | 2 |
| Pretoria, ZA | 2 |
| Wuhan, CN | 2 |
| Knoxville, US | 2 |
| Yangling, CN | 2 |
| University of Southern Mississippilocation not on record | 2 |
| Tacoma, US | 2 |
| USFSlocation not on record | 2 |
| Nishihara, JP | 2 |
| Fayetteville, US | 2 |
| Anhui Normal Universitylocation not on record | 2 |
| NMBU:MINAlocation not on record | 2 |
| Istituto Agrario Castelnuovolocation not on record | 2 |
| Little Rock, US | 2 |
| GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record | 2 |
| Moscow, US | 2 |
| South China Normal Universitylocation not on record | 2 |
| Valparaiso, CL | 2 |
| Museo Achille Folettolocation not on record | 2 |
| Williamsburg, US | 2 |
| Trondheim, NO | 2 |
| Durango, US | 2 |
| Sanda, JP | 2 |
| SZUlocation not on record | 2 |
| Minister of Sustainable Development, Climate Change & Solid Waste Managementlocation not on record | 2 |
| DOI/NPS, Colonial National Historical Parklocation not on record | 2 |
| Arizona State University Biocollectionslocation not on record | 2 |
| University of Guelph, OAC Herbariumlocation not on record | 2 |
| Coimbra, PT | 2 |
| Guiyang, CN | 2 |
| Sevilla, ES | 2 |
| Taipei, TW | 2 |
| Valdosta State Universitylocation not on record | 2 |
| Dover, US | 2 |
| Granada, ES | 2 |
| Whitewater, US | 2 |
| New Mexico State Universitylocation not on record | 2 |
| WNNUlocation not on record | 2 |
| Waverly, US | 1 |
| Meguro Parasitological Museumlocation not on record | 1 |
| Podgorica, ME | 1 |
| Texas Lutheran Universitylocation not on record | 1 |
| Museo de Historia Natural de El Salvadorlocation not on record | 1 |
| BJUlocation not on record | 1 |
| Laboratorio de Ictiologialocation not on record | 1 |
| San Luis Potosí, MX | 1 |
| Jurica-Suchy Nature Museumlocation not on record | 1 |
| TAFORI-LSRClocation not on record | 1 |
| CJBGlocation not on record | 1 |
| Conway, US | 1 |
| Ivano-Frankivsk, UA | 1 |
| Instytut Ochrony Przyrody Polskiej Akademii Nauklocation not on record | 1 |
| Logan, US | 1 |
| Tartu, EE | 1 |
| Portland, US | 1 |
| JP | 1 |
| Beijing Normal Universitylocation not on record | 1 |
| FTlocation not on record | 1 |
| Zürich, CH | 1 |
| Carter County Museumlocation not on record | 1 |
| Fredericton Stock Culture Collectionlocation not on record | 1 |
| STNFlocation not on record | 1 |
| Irvine, US | 1 |
| Philadelphia, US | 1 |
| Stockholm, SE | 1 |
| Nanchong, CN | 1 |
| WCS Colombialocation not on record | 1 |
| Salzburg, AT | 1 |
| Chadron, US | 1 |
| XALlocation not on record | 1 |
| Paleontological Collectionlocation not on record | 1 |
| Shinshu Universitylocation not on record | 1 |
| Tokushima, JP | 1 |
| Comisión Técnico Consultiva de Coeficientes de Agostaderolocation not on record | 1 |
| Royal Botanic Garden Edinburghlocation not on record | 1 |
| Alexandria Universitylocation not on record | 1 |
| Clemson, US | 1 |
| Fairfax, US | 1 |
| Grand Junction, US | 1 |
| Vietnam Academy of Science and Technology (VAST)location not on record | 1 |
| Parthenon Tama History Museumlocation not on record | 1 |
| CSATlocation not on record | 1 |
| Universidad Industrial de Santander (UIS)location not on record | 1 |
| Lord Fairfax Community Collegelocation not on record | 1 |
| Calabar, NG | 1 |
| Johnson City, US | 1 |
| Provincial Museum of Albertalocation not on record | 1 |
| Bogotá, D.C., CO | 1 |
| Universidad Católica de Manizaleslocation not on record | 1 |
| PUC-RSlocation not on record | 1 |
| UNIVILLElocation not on record | 1 |
| Instituto Nacional de Investigaciones sobre Recursos Bióticoslocation not on record | 1 |
| León, NI | 1 |
| Los Angeles, US | 1 |
| Pittsburg, US | 1 |
| Montréal, CA | 1 |
| Museo de Historia Natural Alfredo Dugés, Universidad de Guanajuatolocation not on record | 1 |
| Pamplona, ES | 1 |
| Mexico City, MX | 1 |
| The University of Arizonalocation 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 |
| Herbarium of South China Botanical Gardenlocation not on record | 1 |
| QVMAGlocation not on record | 1 |
| San Isidro, AR | 1 |
| Cibinong Science Center, Herbarium Bogorienselocation not on record | 1 |
| Universite Saint-Josephlocation not on record | 1 |
| College of the Atlantic, Museumlocation not on record | 1 |
| Toyota city nature sanctuarylocation not on record | 1 |
| Portland, US | 1 |
| UFPRlocation not on record | 1 |
| Strecker Museum, Baylor Universitylocation not on record | 1 |
| La Trobe Universitylocation not on record | 1 |
| Pamplona, ES | 1 |
| TAIElocation not on record | 1 |
| Nagasaki University - Fisherieslocation not on record | 1 |
| Jardín Botánico de Cartagena "Guillermo Piñeres" (JBC)location not on record | 1 |
| Brasília, BR | 1 |
| Frankfurt am Main | 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 Quercus 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.