Status: Native
Synonyms:
None
Quercus grisea is perhaps our most common oak. It intergrades with Quercus arizonica, Quercus turbinella, and perhaps other oaks as well. The leaves are ovate, hairy and grayish green.
The upper surface of the leaf is sparsely stellate pubescent. The lower leaf surface is densely stellate tomentose, but also has
shorter simple or forked golden brown glandular hairs. The bark is furrowed. Quercus grisea is either a shrub or tree, depending on the circumstances.
Please click on an image for a larger file.
Quercus grisea, photo Russ Kleinman, Burro Mtns., Knight Mtn., May 9, 2007
Quercus grisea, with acorns, photo Russ Kleinman & Bill Norris, Burro Mtns., Wood Canyon, Aug. 1, 2007
Quercus grisea, growth form, photo Russ Kleinman, Pinos Altos Range, Pinos Altos, Dec. 3, 2008
Quercus grisea, macro of upper leaf surface, photo Russ Kleinman, Burro Mtns., Deadman Canyon, Dec. 4, 2008
Quercus grisea, macro of lower leaf surface, photo Russ Kleinman, Burro Mtns., Deadman Canyon, Dec. 4, 2008
Quercus grisea, closeup of winter twig, photo Russ Kleinman, Pinos Altos Range, Pinos Altos, February 22, 2010
Quercus grisea, 1x macro of terminal bud of winter twig, photo Russ Kleinman, Pinos Altos Range, Pinos Altos, February 22, 2010
Quercus grisea, 3x macro of lateral bud of winter twig, photo Russ Kleinman, Pinos Altos Range, Pinos Altos, February 22, 2010
Quercus grisea, 100x photomicrograph of abaxial (bottom) surface of leaf with both hyaline stellate as well as golden brown simple or forked glandular hairs, photo Russ Kleinman & Karen Blisard, Pinos Altos Range, Pinos Altos, January 25, 2016
Quercus grisea, photomicrograph of leaf cross section with adaxial epidermis left, then palisade cells, spongy mesoderm and abaxial epidermis on the right, photo Russ Kleinman, Pinos Altos Range, Pinos Altos, September 24, 2022
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