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- Quercus douglasii
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See all on WikipediaQuercus douglasii - Wikipedia
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 is California's most drought-tolerant deciduous oak, and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak … See more
Quercus douglasii is a medium-sized tree with sparse foliage, generally 6–20 meters (20–66 feet) tall, with a trunk 36–60 centimeters (1–2 ft) in diameter at breast height. Trunks are typically solitary, but some trees have … See more
Q. douglasii prefers dry to moist soil and plenty of sunlight. Its sparse foliage allows more light to reach the ground, and young trees may grow for decades below their parents' See more
• Media related to Quercus douglasii at Wikimedia Commons See more
The species is one of over 80 named after Scottish botanist David Douglas. The common name "blue oak" derives from the dark blue-green tint of its leaves.
Taxonomically it is placed in the white oak group (subgenus Quercus, section Quercus). See moreThe acorns can be eaten but, if bitter, may need to have the tannins leached. Native Californians commonly gathered the acorns, which they considered good-tasting, and … See more
Wikipedia text under CC-BY-SA license California Oak Trees (With Pictures) – Identification Guide - Leafy …
See more on leafyplace.comOver 20 species of oak trees are native to California. These native trees thrive in the diverse climate of the Pacific coastal regions, with hot, arid conditions in the southwest and humid, mountainous areas in northern California. California oaks are found in 52 of the state’s 58 counties. The three most common varieties of oak tr…Blue Oak - US Forest Service
Blue oak is endemic to California. It inhabits the foothills surrounding the Great Central Valley, essentially encircling it. It is often sold as an ornamental tree, and will reward the patient homeowner who is willing to wait for it to grow.
Blue Oak - Calscape
The majestic blue oak is a drought-tolerant deciduous tree that provides food and shelter for local wildlife. It supports birds, squirrels and insects. It is a host plant for several species of …
10 Common Types of Oak Trees In California (with Pictures)
- Blue Oak. Quercus douglasii. Height: 20 – 60 feet. Longevity: 175 – 400 …
- Coast Live Oak. Quercus agrifolia Nee. Height: 20 – 40 feet. Longevity: 125 – …
- Canyon Live Oak. Quercus chrysolepis Liebm. Height: 60 – 80 feet. …
- Interior Live Oak. Quercus wislizeni A. DC. Height: 30 – 75 feet. Longevity: …
- Valley Oak. Quercus lobata Nee. Height: 40 – 120 feet. Longevity: 150 – 250 …
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Blue Oak - US Forest Service Research and …
Blue oak (Quercus douglasii), named for its blue-green foliage, is also known as iron oak, mountain white oak, or mountain oak. This species is currently underutilized and unmanaged. Silvicultural systems for it are unknown.
Species Spotlight: Quercus douglasii Hook. & Arn.
Feb 8, 2019 · Quercus douglasii is an endemic California oak tree, affectionately called “the blue oak” due to its distinctive blueish-green leaf color. It is common throughout California and known for growing in locations that create a bathtub …
12 Types of California Oak Trees (With Pictures)
May 20, 2023 · The most common types of California oak trees are Coast Live Oak, Valley Oak, Blue Oak, and Interior Live Oak. These oak trees play crucial roles in California’s ecosystems by providing habitat, supporting wildlife, and …
The Ancient Blue Oak Woodlands of California
In a state famous for remarkable forests, the blue oak woodlands must be included among the most exceptional. Blue oak woodlands are a mosaic of forest and savanna on the foothills of …
Quercus douglasii Hook. & Arn. - Calflora
Quercus douglasii is a tree that is native to California, and endemic (limited) to California.
Blue oak - Sacramento Tree Foundation
This hardy yet elegant tree is native to California and is essential to California’s iconic oak woodland ecosystems, especially where they dot our hillsides. Its blue-green leaves drop in …
California oaks - Sacramento Tree Foundation
There are 20 species of oak trees native to California and more than 20 hybrids, but most of Sacramento County’s oaks are one of three species: valley oak, interior live oak, or blue oak. …
Quercus douglasii | Blue Oak | California Gardens
Quercus douglasii is the dominant oak in much of the Coast Ranges and Sierra Foothills surrounding the Central Valley of California. The blue leaves make Quercus douglasii a …
California Oaks II - Valley oak, Blue oak and Engelmann oak are …
California Oaks that bear acorns on each season's growth and are deciduous. Blue Oak – Quercus douglasii- The Blue Oak lives from about Los Olivos in the coast ranges and Lebec in …
10 Special Types of Oak Trees in California - ProGardenTips
Blue Oak (quercus douglasii) This type of oak tree is found only in the state of California and is its most drought-resistant type of oak tree. Sometimes called the iron or mountain oak, the blue …
Blue Oak (Trees and Shrubs of Folsom, California) · iNaturalist
Quercus douglasii, known as blue oak, is a species of oak endemic to (found only in) California, common in the Coast Ranges and foothills of the Sierra Nevada. It is occasionally known as …
Quercus douglasii, Blue Oak. - Las Pilitas
A deciduous oak tree, usually growing to 30 feet, although this oak can sometimes can go to 50 ft. Blue oak has blue-green leaves and light-colored bark.. A California native from Los Angeles …
Blue Oaks Shine New Light on California's Past Climate
Sep 12, 2013 · Stahle’s team sampled over a thousand trees in 36 different blue oak populations (including one on Mount Diablo) to outline almost 700 years of rainfall in the Central Valley and …
California Native Oaks - Wegman's Nursery
There are at least 9 native oaks growing in California: Coast live oak (Quercus agrifolia), blue oak (Q. douglasii), California black oak (Q. kelloggii), and valley oak (Q. lobata) to name a few. Of …
Quercus douglasii | Blue Oak | California Gardens
Quercus douglasii is the dominant oak for inland portions of the Coast Ranges and Sierra Foothills surrounding the Central Valley of California. The blue leaves make Quercus douglasii …
Quercus chrysolepis - Wikipedia
Quercus chrysolepis is an evergreen tree with significant-sized spreading, horizontal branches, and a broad, rounded crown; it attains a height of 6–30 meters (20–100 feet) and often forms …
California Black Oak (Quercus kelloggii): Range, History ...
3 days ago · California Black Oak is native to western North America, specifically found in California, western Oregon, and just into southwestern Washington. Its range spans across …
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