Search Results for "quercus"

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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15m max. spread

20m max. height

20-40 years to maturity

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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20m max. spread

25m max. height

20-40 years to maturity

Quercus pubescens (Downy oak)

Other names: Truffle oak, Nepal oak

Q. pubescens is a spreading, deciduous tree with deeply grooved, grey to black bark and densely hairy shoots bearing oblong to ovate, grey-green leaves, hairy beneath, with rounded lobes ending in pointed teeth. Clusters or catkins of insignificant flowers in spring are followed by ovoid acorns with scaly cups.
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15m max. spread

20m max. height

20-50 years to maturity

Quercus cerris (Turkey oak)

Other names: Iron oak, Bitter oak, Manna oak, Mossy-cupped oak, Wainscot oak

Q. cerris is a variable, fast-growing, spreading, deciduous tree with plated, dark grey bark and oblong to lance-shaped, deeply lobed or toothed, dark green leaves, pale green beneath, turning yellow-brown in autumn. Clusters or catkins of inconspicuous, yellow-green flowers in spring are followed by acorns with bristly cups.
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25m max. spread

30m max. height

20-50 years to maturity

Quercus petraea (Sessile oak)

Other names: Durmast oak, Quercus sessiliflora, Cornish oak

Q. petraea is a large, broad, rounded to spreading, deciduous tree with ridged, grey bark and yellow-stalked, leathery, ovate or oblong, lobed, dark green leaves turning orange-brown in autumn. Insignificant dull yellow flowers in spring are followed by stalkless, oblong to ovoid, brown acorns, borne singly or in clusters in autumn.
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20m max. spread

30m max. height

20-50 years to maturity

Quercus cerris 'Argenteovariegata' (Turkey oak 'Argenteovariegata' )

Other names: Variegated turky oak, Quercus cerris 'Variegata', Iron oak 'Argenteovariegata' , Bitter oak 'Argenteovariegata' , Mossy-cupped 'Argenteovariegata' , Wainscot oak 'Argenteovariegata' , Manna oak 'Argenteovariegata'

'Argenteovariegata' is a variable, fast-growing, spreading, deciduous tree with plated, dark grey bark and oblong to lance-shaped, deeply lobed or toothed, dark green leaves with pale yellow margins, pale green beneath, turning yellow-brown in autumn. Clusters or catkins of inconspicuous, yellow-green flowers in spring are followed by acorns with bristly cups.
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25m max. spread

30m max. height

20-50 years to maturity

Quercus dentata 'Pinnatifida' (Daimio oak 'Pinnatifida')

Other names: Daimyo oak 'Pinnatifida', Japanese emperor oak 'Pinnatifida', Cutleaf Japanese emperor oak, Quercus daimo

'Pinnatifida' is a slow-growing, upright, deciduous tree with fissured bark and stout,open branches bearing ovate, deeply lobed, dark grey-green leaves turning dull yellow-orange in autumn and, in autumn, spherical acorns with fringed caps.
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10m max. spread

12m max. height

20-50 years to maturity