Arizona Naturalists >>> Sycamore Gallery Flora >>> Fagaceae >>> Quercus gambelii

Gambel's Oak

Quercus gambelii

Quercus gambelii photo © by Mike Plagens

Photographed by Mike Plagens along Sycamore Creek in the Pine Mountain Wilderness, Yavapai Co., Arizona, USA. 07 June 2009.

Quercus gambelii photo © by Mike Plagens

Photographed in Pinetop, Navajo Co., Arizona, USA. 15 Aug. 2009.

Sponsored Links:

LEAVES: Winter deciduous, simple leaves have margins with several broad, rounded lobes. Oaks often represent hybrids between recognized species and as such the explorer will find wide variation in leaf texture, shape and pubescence. The leaves in the lower image at left are thicker and darker green than usual. This can be the result of genetic mixing or else local environmental influences. Trees growing in hotter exposed locations can have smaller, thicker leaves, for example.

TREE: In Arizona's sycamore woodlands Gambel's Oak reaches medium size with most specimens 7 to 20 m tall. The champion Gambel's Oak growing in Arizona's Coconino National Forest is almost 32 meters.

FLOWERS: Small flowers without petals are borne early in spring in short spikes of many flowers. Flower usu. before leaves emerge fully.

RANGE: Found as a component of open woodlands, including riparian sycamore galleries, mostly above 1500 m. Very common in Ponderosa Woodlands esp. in ravines, but mostly absent after fires which kill oaks but leave mature ponderosa pines to survive.

FRUIT: Acorns with a deep cups enclusing nut about ½ way.

UNARMED. No spines or thorns.

Fagaceae -- Oak Family

More Information:

Sponsored Link:

Arizona Naturalist
Sycamore Canyons
The Flora of Arizona's Sycamore Canyons


Copyright Michael J. Plagens, 1999-2010