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The Engelmann oak has a smaller range than most California oaks, and suburban sprawl in the San Gabriel Valley has eliminated the oaks from most of the northern part of the range. The largest remaining stands of Engelmann oaks are on the Santa Rosa Plateau , near Murrieta in Riverside County, and on Black Mountain near Ramona in San Diego County.
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]
Canyon live oak (Quercus chrysolepis) - found mainly in northern mountainous regions. Interior live oak (Quercus wislizeni) in the Central Valley region. Island oak (Quercus tomentella) - endemic with distinctive large evergreen leaves. Engelmann oak (Quercus engelmanni) - an endangered species with a cool blue-gray cast to the foliage.
– Chinkapin oak – eastern, central, and southwestern US (West Texas and New Mexico), northern Mexico; Quercus ningqiangensis S.Z.Qu & W.H.Zhang – southeastern China; Quercus oblongifolia Torr. – Arizona blue oak, Southwestern blue oak, or Mexican blue oak – # southwestern U.S., northwestern Mexico; Quercus obtusata Bonpl. – Mexico
Jumping oak galls are caused by a very tiny, native, stingless wasp (Neuroterus sp.) which lays eggs in leaf buds. As the leaf develops, pinhead-sized galls, also referred to as abnormal plant ...
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 ...
Quercus muehlenbergii, the chinquapin (or chinkapin) oak, is a deciduous species of tree in the white oak group (Quercus sect. Quercus). The species was often called Quercus acuminata in older literature. Quercus muehlenbergii (often misspelled as muhlenbergii) is native to eastern and central North America.
Engelmann Oak, also called Pasadena Oak; Engelmann Spruce, a medium-sized evergreen tree; Engelmann syndrome, a rare autosomal dominant genetic disorder;