''Quercus runcinatifolia'' is a species of

oak An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably ''L ...

endemic Endemism is the state of a species being found 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 found elsew ...

to northeastern

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

Range and habitat

''Quercus runcinatifolia'' is endemic to the northern

Sierra Madre Oriental The Sierra Madre Oriental () is a mountain range in northeastern Mexico. The Sierra Madre Oriental is part of the American Cordillera, a chain of mountain ranges (cordillera) that consists of an almost continuous sequence of mountain ranges that f ...

in the state of

Nuevo León Nuevo León () is a state in the northeast region of Mexico. The state was named after the New Kingdom of León, an administrative territory from the Viceroyalty of New Spain, itself was named after the historic Spanish Kingdom of León. With a ...

south of the city of

Monterrey Monterrey ( , ) is the capital and largest city of the northeastern state of Nuevo León, Mexico, and the third largest city in Mexico behind Guadalajara and Mexico City. Located at the foothills of the Sierra Madre Oriental, the city is anchor ...

, including the

Cerro de la Silla The Cerro de la Silla is a mountain and natural monument located within the metropolitan area of the city of Monterrey, Nuevo León, in northeastern Mexico. Named for its distinctive saddle-shaped profile when viewed from the west, it is a well-k ...

. Its natural habitat is montane pine–oak forest. It forms sparse and scattered subpopulations within its range. Subpopulations are often made up of 10–15 mature individuals. The species is threatened from habitat loss from urbanization as the city of Monterrey expands, as well as livestock grazing and logging. The population is small and declining, and the species' conservation status 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 and inva ...

References

{{Taxonbar, from= Q15338616 Endemic oaks of Mexico Flora of the Sierra Madre Oriental Trees of Nuevo León runcinatifolia Plants described in 1936 Trees of Northeastern Mexico Taxa named by William Trelease