Summary[edit] Description: Chadwick Arboretum and Learning Gardens Arboretum North The Ohio State University Columbus, Ohio. Date: 2 August 2018, 12:27. Source: Chestnut oak. Author: Dan Keck from Ohio. Camera location40° 00′ 40.47″ N, 83° 01′ 50.68″ WView all coordinates using: OpenStreetMap 40.011243; -83.030745.
Description: The Garry Oak (Quercus garryana), also known as Oregon White Oak or Oregon Oak, has a range from southern California to extreme southwestern British Columbia. Rancho Santa Ana Botanic Garden - Claremont ,California. Date: 19 November 2006, 15:16. Source: Quercus garryana Uploaded by Amada44. Author: The Marmot from USA. Camera location34° 06′ 43.39″ N, 117° 42′ 52.02″ WView all coordinates using: OpenStreetMap 34.112053; -117.714450.
Summary[edit] Description: Español: Pisos vegetales en Torrecuadrada de los Valles: en el valle, quejigar (Quercus faginea); arriba, encinar (Q. rotundifolia). Date: 30 November 2008. Source: Own work. Author: Carlos Bartolomé La Huerta.
Summary[edit] Description: Illustration of a Chinkapin oak's leaf and acorn. Date: 1913. Source: USDA-NRCS PLANTS Database / An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 1: 624. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc. Author: Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913.
Description: עברית: שלט הנמצא ליד אחרוני אלון התבור בהוד השרון. Date: 4 November 2006 (original upload date). Source: Transferred from he.wikipedia to Commons by מתניה. Author: אביעד at Hebrew Wikipedia.
Distribution map of Quercus laceyi — Lacey oak. NOTE:, Title incorrect: Quercus laceyi (deciduous, Texas & Northeast Mexico) has been often confused with Quercus glaucoides (evergreen, Central and Southern Mexico).
James St. John|sourceurl=https://flickr.com/photos/47445767@N05/49092935228%7Carchive=https://web.archive.org/web/20200615022758/https://www.flickr.com/photos/47445767@N05/49092935228%7Creviewdate=2019-11-23 16:32:07|reviewlicense=cc-by-2.0|reviewer=FlickreviewR 2
Wikimedia Commons
Summary[edit] Description: Quercus agrifolius Née, 1801 - California live oak in California, USA. The species nomen is often spelled "agrifolia". Plants are multicellular, photosynthesizing eucaryotes. Most species occupy terrestrial environments, but they also occur in freshwater and saltwater aquatic environments. The oldest known land plants in the fossil record are Ordovician to Silurian. Land plant body fossils are known in Silurian sedimentary rocks - they are small and simple plants (e.g., Cooksonia). Fossil root traces in paleosol horizons are known in the Ordovician. During the Devonian, the first trees and forests appeared. Earth's initial forestation event occurred during the Middle to Late Paleozoic. Earth's continents have been partly to mostly covered with forests ever since the Late Devonian. Occasional mass extinction events temporarily removed much of Earth's plant ecosystems - this occurred at the Permian-Triassic boundary (251 million years ago) and the Cretaceous-Tertiary boundary (65 million years ago). The most conspicuous group of living plants is the angiosperms, the flowering plants. They first unambiguously appeared in the fossil record during the Cretaceous. They quickly dominated Earth's terrestrial ecosystems, and have dominated ever since. This domination was due to the evolutionary success of flowers, which are structures that greatly aid angiosperm reproduction. The California live oak is native to parts of coastal California and a few areas in Baja California, Mexico. The trunk seen here is from a ~250 year old individual that was blown over during a storm in February 2004. Classification: Plantae, Angiospermophyta, Fagales, Fagaceae Locality: grounds of Calistoga Petrified Forest, northern side of Petrified Forest Road, west-southwest of the town Calistoga, eastern Sonoma County, Coast Ranges of northwest-central California, USA See info. at: en.wikipedia.org/wiki/Quercus_agrifolia. Date: 14 July 2010, 18:44. Source: Quercus agrifolius (coastal live oak; California live oak) (near Calistoga, California, USA) 6. Author: James St. John.
Summary[edit] Description: English: Dick Culbert: Fagaceae, the Oak (or Beech) Family, is of the Fagales Order, closely related to the Cucurbitales. Known as Robles, oak forests extend at altitude through the mountains of much of Central America, but are of low photographic interest. This one near Oaxaca, Mexico is likely Quercus castanea. Date: 3 April 2006, 13:24:54. Source: http://www.dixpix.ca/meso_america/Flora/cucurbit/index.html. Author: Dick Culbert.
Summary[edit] Description: English: Arizona White Oak (Quercus arizonica). Species of plant. Date: 10 September 2019. Source: https://www.inaturalist.org/photos/50973583. Author: Billy Aguirre. Camera location33° 55′ 17.01″ N, 111° 24′ 50.49″ WView all coordinates using: OpenStreetMap 33.921392; -111.414025. Image shared by iNaturalist user: tecpatl Licensing[edit] : This file is made available under the Creative CommonsCC0 1.0 Universal Public Domain Dedication. The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse. : This image was originally posted to iNaturalist by tecpatl at https://www.inaturalist.org/photos/50973583. It was reviewed on 8 November 2020 by INaturalistReviewBot and found to be published under the terms of the Cc-zero license.
Quercus kelloggii— California black oak. Probably the most valuable of all California trees for the wildlife of the state. California black oak provides shelter and food for hundreds of species of birds, mammals, reptiles, and other forms of life. The species grows throughout most of California and into Oregon and Baja California, except for the Great Valley and desert regions. It can be found from near sea level to about 2700 meters. Wind-clipped specimens are sometime regarded as a form as are stunted shrubs caused by edaphic and environmental reasons. Once a widely harvested hardwood timber tree, production has declined dramatically because of over-harvesting as well as U. S. Forest Service policy throughout much of the early 20th century that regarded Q. kelloggii as a "weed" tree to be girdled or otherwise destroyed in coniferous forest. Photographed at Regional Parks Botanic Garden Located in Tilden Regional Park near Berkeley, CA.
Quercus pacifica—Island scrub oak. The species is included in the CNPS Inventory of Rare and Endangered Plants on list 4.2 (limited distribution). The oak is found only on the northern Channel Islands. The image shows staminate catkins. The shrub that provided the branchlet shown grows in Regional Parks Botanic Garden located in Tilden Regional Park near Berkeley, CA.
Summary[edit] Description: Quercus coccinea, I think. Rock Creek Park, Washington, DC, USA. Date: 19 November 2016, 13:32. Source: Scarlet Oak. Author: Katja Schulz from Washington, D. C., USA. Camera location38° 57′ 08.31″ N, 77° 03′ 04.03″ WView all coordinates using: OpenStreetMap 38.952308; -77.051120.