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Search Results for "quercus"


Quercus rubra (Red oak)

Other names: American red oak

Q. rubra is a large, broad, deciduous tree with deep green leaves in summer and red autumn colour. It has red-brown fruits called acorns.
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Ultimate spread 20m
max. spread
Ultimate height 25m
max. height
Time to ultimate size 20-40 years
to maturity
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Quercus phellos (Willow oak)

Q. phellos is a large deciduous tree forming a dense oblong crown of simple long leaves and inconspicuous yellow-green catkins in spring followed by small acorns.
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Ultimate spread 12m
max. spread
Ultimate height 15m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus suber (Cork oak)

Other names: Cork tree

Q. suber is a half-hardy, rounded, evergreen tree with thick, ridged, corky bark and ovate to oblong, toothed, rigid, glossy, dark green leaves, grey-hairy beneath. Small catkins of insignificant yellow-green flowers in spring are followed by ovoid to oblong acorns.
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Ultimate spread 20m
max. spread
Ultimate height 20m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus chrysolepis (Canyon oak)

Other names: Maul oak, Golden cup oak, Canyon live oak, Californian live oak

Q. chrysolepis is a spreading, evergreen tree or shrub with scaly, whitish-grey or red-flushed bark, ovate to elliptic, spiny-toothed, leathery, glossy, mid- to dark green leaves, grey- or yellow-hairy beneath, and oblong to ovoid, sharp-tipped acorns in felted cups.
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Ultimate spread 10m
max. spread
Ultimate height 20m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus bicolor (Swamp white oak)

Q. bicolor is a spreading, deciduous tree with peeling, fissured, grey-brown bark and oblong to ovate, shallowly lobed, glossy, dark green leaves, white-hairy beneath when young and yellow in autumn. Oblong to ovoid acorns are enclosed by one-third in rounded caps with hairy scales.
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Ultimate spread 15m
max. spread
Ultimate height 20m
max. height
Time to ultimate size 20-40 years
to maturity
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Quercus acutissima (Sawtooth oak)

Other names: Sawthorn oak, Japanese silkworm oak

Q. acutissima is a rounded, deciduous tree with fissured, corky, grey to black bark and ovate to lance-shaped, glossy, mid-green leaves with bristle-tipped teeth. Ovoid acorns are borne in cups covered with long, slender, hairy scales.
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Ultimate spread 20m
max. spread
Ultimate height 20m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus palustris (Pin oak)

Other names: Swamp Spanish oak

Q. palustris is a large, vigorous, broadly conical, deciduous tree with pendent lower branches, elliptic, glossy, deeply lobed, mid-green leaves turning scarlet to reddish-brown in autumn. Inconspicuous flowers in spring are followed by spherical, brown fruit in autumn.
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Ultimate spread 12m
max. spread
Ultimate height 20m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus agrifolia (California live oak)

Other names: Coast live oak, Encina

Q. agrifolia is a dense, spreading, evergreen tree with ridged, grey bark, oval, convex, spiny-toothed, glossy, dark green leaves and slender, ovoid, pointed acorns enclosed by a cap with thin, overlapping scales.
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Ultimate spread 10m
max. spread
Ultimate height 10m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus ilex (Holm oak)

Other names: Evergreen oak, Holly-leaved oak, Holly-oak, Ilex

Q. ilex is a large evergreen tree forming a dense crown of rounded leaves and inconspicuous yellow-green catkins in spring followed by characteristic acorns.
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Ultimate spread 12m
max. spread
Ultimate height 15m
max. height
Time to ultimate size 20-50 years
to maturity
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Quercus robur (Common oak)

Other names: Pedunculate oak, Polish oak, Slavonian oak, English oak, Black oak, French oak

Q. robur is a large deciduous tree forming a broad crown of rounded leaves which turn reddish-brown in autumn and inconspicuous yellow-green catkins in spring followed by characteristic acorns.
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Ultimate spread 12m
max. spread
Ultimate height 15m
max. height
Time to ultimate size 20-50 years
to maturity
Add to my lists


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