Mark A. Miller
The lustrous, dark green, lance-shaped leaves of sawtooth oak turn rich yellow to golden brown late in fall. It is native to wooded regions of the Himalayas, China, Korea and Japan in Asia but has been introduced in the southeastern United States. This large deciduous tree has a broadly-rounded crown and tall upright trunk with corky, medium-gray to nearly black bark. Young trees have a more pyramidal crown.
The distinctive leaves of sawtooth oak are long, lance-shaped and have coarse, bristle-tipped...
(California Live Oak)
The gnarled, picturesque trunks and aged branches of the California live oak have interesting evergreen, holly-like foliage. It naturally resides along the coasts and foothills from Central California southward into Mexico. Its bark is smooth and gray but becomes darker and mildly furrowed with great age.
The leathery dark green leaves of California oak are oval to elliptical in shape with spiny teeth along the edges. They are evergreen but shed in abundance in spring before quickly being replaced....
Gerald L. Klingaman
Large, robust and long-lived, the North American white oak is truly a regal tree when mature. It develops a large, rounded crown and strong, muscular branches. Hailing from a large expanse of eastern North America, this large deciduous tree has peeling, gray to brownish bark that forms scaly plates and its durable, attractive wood is valued for furniture making. They are slow-growing but have strong wood and can live for several hundred years.
The flowers appear in spring before the leaves unfurl....
(Buckley's Oak, Texas Red Oak)
The small- to medium-sized Buckley's oak is native to a small region in the south-central United States from Kansas down to Texas. It develops a pleasing pyramidal to rounded canopy and is ideal for small-scale southern and southwestern landscapes. The single trunk has dark gray, somewhat smooth bark that becomes furrowed on older branches and the lower trunk. In the wild, it can be found growing along limestone ridges and creek floodplains where soils are somewhat alkaline and heavy in clay. It...
(Eurpoean Turkey Oak, Moss-cupped Oak)
Variable in the shape of its lobed, oblong leaves, European turkey oak forms entertaining acorns that have a frilly, scaled cap. A fast-growing oak, this deciduous tree is native across much of central and southern Europe, including western Turkey. It becomes a handsomely shaped plant, with an spreading but rounded canopy. Its bark is whitish gray to snady gray and while corky, will crack into fissured plates.
The dull, deep green leaves are variable in shape, from oval to nearly lance-like and...
Michael Charters, www.calflora.net
(Canyon Live Oak, Golden-cup Oak, Maul Oak)
The rounded but mildly spreading canopy of the canyon oak has handsome evergreen, dense, holly-like foliage. It naturally grows from southern Oregon to Arizona and Baja California in western North America. Its bark is smooth and white when young but becomes reddish gray and white, corky and furrowed with age. Variable in form, it can be a large tree or dense large shrub.
The leathery oval green leaves may or may not have small spines, resembling holly foliage. They are evergreen and have light...
Oaks are regal shade trees, and the scarlet oak is a particularly fine species that develops bright fall color in rich red shades. This tall, deciduous tree is native throughout much of the United States east of the Mississippi, save the state of Florida. When young, its crown is roughly pyramidal, but as it matures it becomes open and rounded. This vigorous species is among the fastest growing of the large oaks and also one of the most short-lived. In the wild, it thrives in dry, open, upland locations....
(Daimyo Oak, Japanese Emperor Oak)
Royalty in its status among the world's oaks, the Japanese emperor oak boasts the largest leaves of all oak species. This large, stoutly branched deciduous tree is native to eastern Asia. Its bark is brown and fissured and splits into gray scaly plates.
The large, leathery green leaves are oblong with curving edges. Colored deep green with a lighter underside, each leaf can grow as large as an adult's foot. Old dry leaves are pushed off as spring leaf buds swell. As the new leaves open in spring...
Michael Charters, www.calflora.net
The dense, low and wide-spreading branches of the blue oak carry pretty foliage, espeically in fall when the leaves become blushed with pale pink, yellow and orange colors. This large deciduous tree naturally grows in the dry foothills of central and southern California. Its bark is whitish gray and becomes platy with small reddish brown scales.
The small leathery green then blue-green leaves of blue oak have three to five deep lobes that are blunt or rounded at their tips. As the new leaves...
James H. Schutte
(Englemann's Oak, Mesa Oak, Pasadena Oak)
The muscular trunk and irregular, wide-spreading branches of the mesa oak carry stately leaves and acorns with a warty cap. This rare, broadleaf evergreen tree to often drought-deciduous tree naturally grows in the chaparral of extreme southern California and northern Baja in Mexico. Its bark is whitish gray and tightly furrowed. Branches are almost black. There is variability in the degree of deciduousness of this species, as well as the dropping foliage's color.
The oblong leathery dull green...