Quercus pontica, the Pontine oak or Armenian oak, is a species of endangered oak currently extant to the western Caucasus mountains of Georgia and northeastern Turkey where it grows at altitudes of 1,300–2,100 metres.
Quercus × basaseachicensis is a species of oak tree in the Fagaceae (beech) family. It is thought to be a hybrid of Quercus depressipes and Quercus rugosa. It is native to the states of Chihuahua and Durango in Mexico, in which there are five known populations. Both parents are placed in section Quercus.
Quercus benthamii is a species of oak in the family Fagaceae. It is native to the cloud forests of Central America and southern Mexico. It is threatened by habitat loss.
Quercus cedrosensis, the Cedros Island oak, is a species of plant in the family Fagaceae. It is placed in Quercus section Protobalanus.
Quercus deliquescens is a species of oak tree in the family Fagaceae, native to northeast Mexico. It is placed in section Quercus.
Quercus devia is a species of oak tree in the family Fagaceae, native to northwestern Mexico. The tree is endemic to the Sierra de la Laguna range of the Peninsular Ranges system, located in the southern part of the Baja California Sur state of Mexico. It grows in Sierra de la Laguna pine-oak forests habitats. It is an IUCN Red List endangered species, threatened by habitat loss. It is placed in section Lobatae.
Quercus galeanensis is a species of oak tree in the family Fagaceae, native to Northeastern Mexico. The tree is endemic to Mexico, restricted to two subpopulations occupying a narrow band from Galeana in Nuevo León state, to the Miquihuana region in Tamaulipas state. It is an IUCN Red List endangered species, threatened by habitat loss. It is placed in section Lobatae.
Quercus invaginata is a species of plant in the family Fagaceae. It is a variety of oak endemic to the Mexican state of Coahuila. It is placed in section Quercus.
Quercus germana, the Mexican royal oak, is a species of oak tree in the family Fagaceae. It is native to mountain cloud forests in eastern Mexico. It is placed in section Quercus.
Quercus macdougallii is a species of plant in the family Fagaceae. It is placed in section Quercus.
Quercus miquihuanensis is a species of oak in the family Fagaceae. It is endemic to the Nuevo León and Tamaulipas states of Mexico. It is an endangered species, threatened by habitat loss. It is placed in section Lobatae.
Quercus peninsularis, common name peninsular oak, is a species of oak endemic to Baja California, Mexico. It is a shrub or small tree to 10 m, occurring in mountain valleys and canyons up to 3000 m. It is placed in section Lobatae. Leaves are 5–8 cm, flat, leathery and hairy, with pointed tips and 2-5 pairs of teeth. Flowers occur in 3 cm catkins. Fruits are 1.5 cm acorns, stemless, ovoid, with hairy cupules, maturing in a year. Mature bark is reddish; young twigs are thin and hairy.
Quercus purulhana is a species of oak native to Central America. It is found in Belize, Guatemala, Honduras, Nicaragua, and the Chiapas state of southern Mexico. It is a montane forest species. It is an IUCN Red List near-threatened species, threatened by habitat loss. It is placed in section Quercus.
Quercus undata is a species of plant in the family Fagaceae. It is endemic to Mexico. It is placed in section Quercus.
Quercus vicentensis is a species of oak tree in the family Fagaceae, native to southern Mexico and northern Central America. It is placed in section Quercus.
Quercus alnifolia, commonly known as the golden oak, is an evergreen oak species of Cyprus. Its common English name refers to the golden coloured lower surface of its leaves. Quercus alnifolia belongs to the endemic flora of the island and it is confined to the igneous geological complex of the Troodos Mountains. In February 2006, the parliament of Cyprus selected the golden oak to be the country's national tree.
Quercus pyrenaica, commonly known as Pyrenean oak, is a tree native to southwestern Europe and northwestern North Africa. Despite its common name, it is rarely found in the Pyrenees Mountains and is more abundant in northern Portugal and north and northwestern Spain.
Quercus vulcanica is a species of flowering plant in the Fagaceae family. It is referred to by the common name Kasnak oak, and is a rare species of tree native to Lebanon, Syria, and Turkey. It is placed in section Quercus.
Quercus mcvaughii is a species of oak tree native to Mexico.
Quercus striatula is a species of oak native to Mexico.
