''Quercus macdougallii'' is a species of

plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...

in the family

Fagaceae The Fagaceae (; ) are a family of flowering plants that includes beeches, chestnuts and oaks, and comprises eight genera with around 1,000 or more species. Fagaceae in temperate regions are mostly deciduous, whereas in the tropics, many species ...

. It is placed in section ''Quercus''.

Description

''Quercus macdougallii'' is a large evergreen tree, growing from 20 to 35 meters high at maturity, with trunk up to about one meter in diameter. It is placed in section ''Quercus''.

Distribution and habitat

The tree is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Oaxaca Oaxaca, officially the Free and Sovereign State of Oaxaca, is one of the 32 states that compose the political divisions of Mexico, Federative Entities of the Mexico, United Mexican States. It is divided into municipalities of Oaxaca, 570 munici ...

state in southwestern

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

. It grows in Sierra Madre de Oaxaca pine-oak forests habitat in the Sierra Juárez, a subrange of the

Sierra Madre de Oaxaca The Sierra Madre de Oaxaca is a mountain range in southeastern Mexico. It is primarily in the state of Oaxaca, and extends north into the states of Puebla and Veracruz. Geography The mountain range begins at Pico de Orizaba, and extends in a sout ...

. ''Quercus macdouglallii'' is found in high-elevation oak forests and in mixed oak-pine or pine-oak forests between 2,500 and 3000 meters elevation. It is generally found in association with the trees '' Quercus laurina,

Pinus ayacahuite ''Pinus ayacahuite'', also called ayacahuite pine and Mexican white pine, (family Pinaceae) is a species of pine native to the mountains of southern Mexico and western Central America, in the Sierra Madre del Sur mountains and the eastern end o ...

Pinus hartwegii ''Pinus hartwegii'' ( syn. ''P. rudis'', ''P. donnell-smithii''), Hartweg's pine, the Mexican mountain pine, or pino de las alturas, is a pine native to the mountains of Mexico and Central America east to Honduras. It is named after Karl Theodor ...

Pinus patula ''Pinus patula'', commonly known as patula pine, spreading-leaved pine, or Mexican weeping pine, and in Spanish as ''pino patula'' or ''pino llorón'', (''patula'' Latin = "spreading") is a tree native to the highlands of Mexico. It grows from ...

, Litsea glaucescens, Clethra hartwegii,

Gaultheria acuminata ''Gaultheria'' is a genus of about 283 species of shrubs in the family Ericaceae. The name commemorates Jean François Gaultier of Quebec, an honour bestowed by the Scandinavian Pehr Kalm in 1748 and taken up by Carl Linnaeus in his '. These pla ...

'', and '' Quercus crassifolia''.

Conservation

''Quercus macdougallii'' is endemic to a small area of the Sierra Juárez. Its total population is estimated at 500 mature individuals. It is threatened by habitat loss from deforestation and fire, and its habitat is not in a designated protected area. It is assessed as

Endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

References

{{Taxonbar, from=Q7271344 macdougallii Endemic oaks of Mexico Trees of Northern America Flora of the Sierra Madre de Oaxaca Taxonomy articles created by Polbot Cloud forest flora of Mexico