Search Results for "quercus"

Quercus mongolica subsp. crispula (Mongolian oak)

Other names: Quercus mongolica var. grosseserrata

Q. mongolica subsp. crispula is a spreading, deciduous tree with rough, black-brown bark and narrowly oblong to narrowly ovate, dark green leaves with rounded lobes. Catkins of insignificant, yellow-green or dull red flowers in late spring and early summer are followed by ovoid, pale brown acorns with scaly, thick caps.
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16.5m max. spread

18m max. height

50-100 years to maturity

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 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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20m max. spread

20m max. height

20-50 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 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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12m max. spread

15m max. height

20-50 years to maturity

Quercus prinoides (Dwarf chinkapin oak)

Other names: Dwarf chinquapin oak, Dwarf chestnut oak, Scrub chestnut oak

Q. prinoides is a spreading, deciduous shrub or small tree with leathery, oblong to lance-shaped, toothed or shallowly lobed, glossy, dark green leaves, pale green beneath. Solitary or paired, oblong to ovoid, green acorns, with a cup enclosing about half, ripen dark brown in autumn.
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6m max. spread

6m max. height

50-100 years to maturity

Quercus lobata (Valley oak)

Other names: Sacramento white oak, Californian oak, California white oak, Roble

Q. lobata is a spreading, deciduous tree with deeply furrowed, grey to brown bark, oblong to ovate, velvety, dark green leaves divided into eleven rounded lobes, and ovoid, sweet, edible, dark brown acorns.
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15m max. spread

25m max. height

50-100 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