Dull bluish-green leaves are widest above the middle; LA Arboretum, Los Angeles, CA. 7-05-09. © Joan Avise |
Engelmann Oak Quercus engelmanniiThese trees grow 15-50ft. at maturity, with the largest in the state growing to Native to California and Baja California, included in the CNPS Inventory of Rare and Endangered Plants on list 4.2 (limited distribution). 7th Edition / 8th Edition Back to Fagaceae of Orange County, California |
Crown of old tree. Santa Rosa Plateau Ecological Preserve, Riverside Co., CA. 3-01-09. © Joan Avise |
Underside slightly paler than upper side of leaf; LA Arboretum, Los Angeles, CA. 7-05-09. © Joan Avise |
Santa Rosa Plateau Ecological Preserve, Riverside Co., CA. 3-01-09. © Joan Avise |
Thick bark is resistant to fire; LA Arboretum, Los Angeles, CA. 7-05-09. © Joan Avise |
Santa Rosa Plateau Ecological Preserve, Riverside Co., CA. 3-01-09. © Joan Avise |
Main Divide N, 1.65 to 2.3 mi. NW Hwy 74, 6-22-13. © Ron Vanderhoff. |
Main Divide N, 1.65 to 2.3 mi. NW Hwy 74, 6-22-13. © Ron Vanderhoff. |
SR Plateau, Vernal Pool, Trans Pr., Hid Vly., Los Snts Tr., 3-27-14. © Ron Vanderhoff. |
Grnt Loop, Waterline, Vista Grande Tr., SR Plateau, 3-27-14. © Ron Vanderhoff. |
Grnt Loop, Waterline, Vista Grande Tr., SR Plateau, 3-27-14. © Ron Vanderhoff. |
Vista Grande Trail, Santa Rosa Plateau 3-28-10. © Ron Vanderhoff. |
Vista Grande Trail, Santa Rosa Plateau 3-28-10. © Ron Vanderhoff. |
Quercus berberidifolia x engelmannii, per Roberts, Hobo Cyn., 1-25-13. © Ron Vanderhoff. |
Quercus berberidifolia x engelmannii, per Roberts, Hobo Cyn., 1-25-13. © Ron Vanderhoff. |
Quercus berberidifolia x engelmannii, per Roberts, Hobo Cyn., 1-25-13. © Ron Vanderhoff. |
Quercus berberidifolia x engelmanii, Oak Flats, San Mateo Wldns., 3-27-16. © Ron Vanderhoff. |
Quercus berberidifolia x engelmanii, Oak Flats, San Mateo Wldns., 3-27-16. © Ron Vanderhoff. |
Quercus berberidifolia x engelmannii, per Roberts, Hobo Cyn., 1-25-13. © Ron Vanderhoff. |
Quercus berberidifolia x engelmannii, per Roberts, Hobo Cyn., 1-25-13. © Ron Vanderhoff. |