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Quercus gambelii - Gambel oak

Scientific Family
Fagaceae
Plant type
Trees
Riparian
No

Plant Description

Origin
Native

Upright form with rounded crown. Sometimes forms thickets. Occasionally reaches 50 ft. but is usually no taller than 30 ft. Found on rocky slopes.

Leaves deeply lobed, 2 to 4 rounded lobes per side, often more than 1/2 the way to the midrib, overall leaf is more elliptic in outline, 2 to 7 inches long. The bark is grayish in color. It is the only winter deciduous oak in Yavapai county.

Height
30 feet
Width
20 feet

Habitat

Habitat description

Found in forests, generally in association with ponderosa pine at higher elevations.

Plant Community
Montane Conifer Forest
Low elevation
5000
High elevation
8000

Leaves

Leaf color
Dark green
Leaf type
Simple
Leaf shape
Round or oval
Leaf margin
Lobed
Leaf attachment
Alternate
Leaf hairs
Bottom of leaves
Spines
No
Leaf Drop
Deciduous

Smooth above while lighter green with soft hairs below. Oblong up to 6 inches long with 7 to 11 rounded lobes. Turns bronze or sometimes red in the fall.

Flowers

Flower color
Yellow
Flower shape
Inconspicuous
Tubular
No
First bloom month
May
Last bloom month
May

Male flowers are 4 to 12 stamens collected in drooping catkins. Female flowers solitary or in clusters of 2 to 3 in a short spike. Male and female flowers are on the same tree. Mostly wind-pollinated.

Flower clusters
Elongated

Fruit

Fruit color
Brown
Fruit type
Acorn or acorn-like

Oval 3/4 inch long acorn with lower half covered by hairy scales and bowl-like cup. Solitary or clustered in groups of 2 or 3.

Bark/Branches

Bark color
Gray, reddish-brown
Bark texture
Rough

Younger twigs can be reddish-brown and gray. Darker and rough with fissures and deep irregular grooves when mature.