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Quercus ilicifolia, commonly known as bear oak or scrub oak, is a small shrubby oak native to the Eastern United States and, less commonly, in southeastern Canada. Its range in the United States extends from Maine to North Carolina , with reports of a few populations north of the international frontier in Ontario . [ 3 ]
Quercus hartwissiana Steven – Strandzha oak – southeastern Bulgaria, northern Turkey, western Georgia, southwestern Russia; Quercus havardii Rydb. – Havard oak, shinnery oak, shin oak – south central North America †Quercus hiholensis — Miocene — # Washington State [4] Quercus hinckleyi C.H.Mull. – Hinckley oak – # Texas ...
Quercus × morehus, [3] Abram's oak in Kellogg's original description [4] (later called oracle oak by Jepson [5]), is a named hybrid between the red oaks Quercus kelloggii (California black oak) and Quercus wislizeni (interior live oak). [6]
Quercus douglasii, known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. [4] It is California's most drought-tolerant deciduous oak, [5] and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak and iron oak. [6] [7]
Quercus petraea subsp. polycarpa is native to eastern Europe from Austria to European Turkey, including Bulgaria, Czechoslovakia, Greece, Hungary, Romania, former Yugoslavia and the Caucasus (including Armenia, Azerbaijan and Georgia) and temperate asia including Turkey and Iran.
Quercus rugosa is an evergreen shrub or tree. [3] The bark is brown and scaly. The leaves are thick and leathery, rarely flat, usually cupped, up to 15 centimetres (6 inches) long, dark green on the top but covered with a thick of reddish-brown hairs on the underside.
Quercus emoryi, the Emory oak, is a species of oak common in Arizona (including inside Saguaro National Park), New Mexico and western Texas (including inside Big Bend National Park), United States, and northern Mexico (Sonora, Chihuahua, Coahuila (including Parque Nacional Maderas del Carmen), Durango, Nuevo León, and San Luis Potosí).
Quercus ilex, the holm oak, [2] [3] also (ambiguously, as many oaks are evergreen) evergreen oak, [4] is a large evergreen oak native to the Mediterranean region. It is a member of the section Ilex of the genus, [ 5 ] [ 6 ] with acorns that mature in a single summer.