Gambel's Oak
Quercus gambelii
Observed on Pinal Peak, Gila Co., Arizona, USA. 23 Sept 2012.
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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. Leaves can be thicker and darker green in some plants. 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 montane habitats Gambel's Oak is a medium to large
tree. 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 frequent component of open woodlands, more commn and
reaching larger proportions on moister sites. Less frequent after periodic
fires.
FRUIT: Acorns with a deep cups enclusing nut about ½ way.
UNARMED. No spines or thorns.
Fagaceae -- Oak Family
More Information:
-
Southwest
Environmental Information Network
- Flora of North America
- USDA Plant Profile
- ITIS Taxonomic Report
- Google Images
- Google Scholar Literature Search