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  2. Quercus lobata - Wikipedia

    en.wikipedia.org/wiki/Quercus_lobata

    Quercus lobata, commonly called the valley oak or roble, is the largest of the California oaks. It is endemic to the state, growing in interior valleys and foothills from Siskiyou to San Diego counties. [4] Deciduous, it requires year-round groundwater, [5][6] and may live up to 600 years. Its thick, ridged bark (resembling alligator hide) and ...

  3. Quercus agrifolia - Wikipedia

    en.wikipedia.org/wiki/Quercus_agrifolia

    Quercus agrifolia, the California live oak, [3] or coast live oak, is an evergreen [4] live oak native to the California Floristic Province.Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree. [5]

  4. California oak woodland - Wikipedia

    en.wikipedia.org/wiki/California_oak_woodland

    Oregon oak woodland is found in Northern California's Klamath-Siskiyou, Northern Coast Ranges, and southern Cascade Range.These woodlands are composed primarily of Oregon oak (Q. garryana), interior live oak (Q. wislizeni), and coast live oak, together with California black oak, canyon live oak, blue oak, Pacific madrone (Arbutus menziesii), California bay (Umbellularia californica), incense ...

  5. Quercus engelmannii - Wikipedia

    en.wikipedia.org/wiki/Quercus_engelmannii

    Quercus engelmannii is a small tree growing to 10 metres (33 feet) tall, generally evergreen, but may be drought- deciduous during the hot, dry local summers, and has a rounded or elliptical canopy. The bark is thick, furrowed, and light gray-brown. The leaves are leathery, 3–6 centimetres (– inches) long and 1–2 cm (– in) broad, of a ...

  6. Umbellularia - Wikipedia

    en.wikipedia.org/wiki/Umbellularia

    Umbellularia californica is a large hardwood tree native to coastal forests and the Sierra foothills of California, and to coastal forests extending into Oregon. [2] It is endemic to the California Floristic Province. It is the sole species in the genus Umbellularia. The tree was formerly known as Oreodaphne californica. [3]

  7. California's oldest tree may be threatened by proposed ...

    www.aol.com/news/ancient-california-tree-may...

    Environmentalist Aaron Echols, conservation chair of the California Native Plant Society's Riverside/San Bernardino chapter, walks near the Palmer's oak. The tree is estimated to be 13,000 to ...