• Thumbnail for Quercus douglasii
    Quercus douglasii, known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. It...
    12 KB (1,247 words) - 17:29, 16 January 2024
  • Thumbnail for Quercus gambelii
    scientific names, Gambel oak and Quercus gambelii, were named after the American naturalist William Gambel (1821–1849). Quercus gambelii trees differ in size...
    10 KB (887 words) - 21:54, 31 August 2024
  • Quercus × alvordiana, the Alvord oak, is a hybrid oak in the genus Quercus. It has been reported to be a hybrid between Quercus douglasii and Quercus...
    3 KB (233 words) - 16:15, 19 February 2024
  • Thumbnail for Quercus garryana
    varieties: Quercus garryana var. garryana – tree to 65 (100) ft. British Columbia south along the Cascades to the California Coast Ranges. Quercus garryana...
    24 KB (2,544 words) - 22:37, 3 September 2024
  • and Texas Quercus deserticola Trel. – # Mexico Quercus diversifolia Née – Mexico Quercus douglasii Hook. & Arn. – blue oak – California Quercus dumosa Nutt...
    47 KB (4,222 words) - 21:09, 9 September 2024
  • Oak tree – Quercus Algerian Oak – Quercus canariensis Blue oak – Quercus douglasii Bur oak – Quercus macrocarpa California Black Oak Quercus kelloggii...
    39 KB (3,298 words) - 19:37, 29 June 2024
  • Thumbnail for Pinus sabiniana
    poorly drained clay soils. It commonly occurs in association with Quercus douglasii, and "Oak/Foothill Pine vegetation" (also known as "Oak/Gray Pine...
    17 KB (1,572 words) - 09:48, 2 May 2024
  • Thumbnail for Acrobasis comptella
    the western United States. The larvae feed on Quercus dumosa, Quercus douglasii, Quercus garryana, Quercus ajoensis and Chrysolepis sempervirens. Markku...
    1 KB (60 words) - 21:16, 10 September 2024
  • Thumbnail for Chaparral
    Quercus species – oaks: Quercus agrifolia – coast live oak Quercus berberidifolia – scrub oak Quercus chrysolepis – canyon live oak Quercus douglasii...
    37 KB (4,119 words) - 03:27, 14 September 2024
  • Thumbnail for Del Norte County, California
    types including mixed oak forest. The California endemic Blue oak, Quercus douglasii is at the northernmost part of its range in Del Norte County. The...
    51 KB (2,570 words) - 01:25, 15 August 2024
  • Thumbnail for Trinity Mountains
    stands of Black Oak (Quercus kelloggii), Blue Oak (Quercus douglasii) and Douglas-fir (Pseudotsuga menziesii). The Quercus douglasii occurrences are a disjunctive...
    5 KB (363 words) - 23:51, 4 August 2024
  • Thumbnail for Knobcone pine
    Sierra Nevada, knobcone pine is often a co-dominant with blue oak (Quercus douglasii). The species is susceptible to fire, but this melts the cone resin...
    6 KB (527 words) - 13:57, 23 December 2023
  • Thumbnail for Western toad
    Suitable habitat includes blue oak (Quercus douglasii) savanna, gray pine-oak forest (Pinus sabiniana-Quercus spp.), mixed conifer forest, and alpine...
    20 KB (2,393 words) - 04:45, 22 July 2024
  • Thumbnail for California oak woodland
    California oak woodland (category Quercus)
    (Pinus sabiniana), Blue Oak (Quercus douglasii), Interior Live Oak (Quercus chrysolepis), California Black Oak (Quercus kelloggii), California Buckeye...
    19 KB (2,322 words) - 18:42, 2 May 2024
  • Thumbnail for Diablo Range
    racemosa). The most common trees are coast live oak (Quercus agrifolia) and blue oak (Quercus douglasii), with the largest blue oak growing in Alameda County...
    18 KB (1,896 words) - 07:11, 19 July 2024
  • Thumbnail for Tehachapi Mountains
    woodland species include: canyon live oak (Quercus chrysolepis), valley oak (Quercus lobata), blue oak (Quercus douglasii), and gray pine (Pinus sabiniana). Montane...
    16 KB (1,667 words) - 20:58, 6 November 2023
  • Thumbnail for Figueroa Mountain
    oak woodland dominated by valley oak (Quercus lobata), blue oak (Quercus douglasii), interior live oak (Quercus wislizenii), and gray pine (Pinus sabiniana)...
    4 KB (341 words) - 05:34, 10 December 2022
  • The larvae feed on Quercus douglasii, Quercus dumosa, Quercus dumosa × engelmanii, Quercus engelmannii, Quercus turbinella and Quercus × alvordiana. They...
    2 KB (182 words) - 20:20, 26 August 2024
  • British Columbia to California. The larvae feed on Quercus douglasii, Quercus dumosa and Quercus garryana. Beccaloni, George; et al., eds. (February...
    1 KB (70 words) - 03:52, 17 October 2023
  • leaf tiers on Quercus chrysolepis, Quercus douglasii, Quercus dumosa, Quercus kelloggii, Quercus turbinella, Quercus vaccinifolia and Quercus wislizenii...
    1 KB (77 words) - 03:50, 17 October 2023
  • Thumbnail for Riverside County, California
    forested areas within the county. The California endemic Blue oak, Quercus douglasii is at the southernmost part of its range in Riverside County. Cleveland...
    140 KB (6,206 words) - 20:10, 31 August 2024
  • oak (Quercus agrifolia), Blue oak (Quercus douglasii), and Black oak (Quercus kelloggii). Flora of the Southern Inner Coast Ranges includes: Quercus alvordiana...
    4 KB (316 words) - 17:55, 17 September 2023
  • Thumbnail for Carmel Valley Village, California
    Dominant oak trees include Quercus agrifolia. The locale of Carmel Valley is the northernmost range of the hybrid oak Quercus x alvordiana. The Garland...
    21 KB (1,737 words) - 22:38, 18 August 2024
  • Thumbnail for Siskiyou Mountains
    California black oak is found in the Siskiyou Mountains. The blue oak, Quercus douglasii, is beyond its contiguous range; however, there are disjunctive populations...
    30 KB (2,807 words) - 21:26, 11 August 2024
  • Thumbnail for List of California native plants
    chaparral. Blue oak (Quercus douglasii) - in the Central Valley foothills and Coast Ranges. California black oak (Quercus kelloggii) - in the higher hills...
    27 KB (2,110 words) - 15:59, 25 August 2024
  • Thumbnail for Double Mountain (California)
    OCLC 678356. Hogan, PhD, C. Michael (2008). Stromberg, N. (ed.). "Blue Oak: Quercus douglasii". GlobalTwitcher.com. Archived from the original on 2012-02-28. Retrieved...
    3 KB (205 words) - 18:15, 21 July 2024
  • The apex, behind the fascia, is brown. The larvae feed on Quercus agrifolia, Quercus douglasii, Ceanothus thyrsiflorus, Ceanothus sorediatus, Cercocarpus...
    2 KB (228 words) - 08:57, 12 October 2023
  • Thumbnail for List of inventoried hardwoods in the United States
    National Plant Data Team 2024, Quercus douglasii. McDonald 1990, pp. 631–639. National Plant Data Team 2024, Quercus falcata. Belanger 1990, pp. 640–643...
    136 KB (5,455 words) - 22:10, 12 September 2024
  • Thumbnail for American River
    (Populus freemontii) Blue oak (Quercus douglasii) Valley oak (Quercus lobata) Oracle oak (Quercus morehus) Interior live oak (Quercus wislizenii) California pipe...
    40 KB (4,164 words) - 02:45, 4 September 2024
  • larvae feed on Quercus chrysolepis, Quercus douglasii, Quercus kelloggii, Quercus lobata, Quercus wislizenii, Quercus dumosa, Quercus tomentella, Arctostaphylos...
    2 KB (255 words) - 16:37, 5 May 2024