Quercus graciliformis

Quercus graciliformis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Section: Lobatae
Species: Q. graciliformis
Binomial name
Quercus graciliformis
C.H.Mull. (1934)
Natural range of Quercus graciliformis
Synonyms

Quercus canbyi

Quercus graciliformis, also known as the Chisos oak or slender oak, is a rare North American species of oak tree in the beech family. [1]

Distribution

The species has been found only in the Chisos Mountains, within Big Bend National Park of West Texas, and a few miles southeast into the state of Coahuila in northeast Mexico.[2] It is threatened by habitat loss.[3][4]

It grows on dry, rocky canyon floors at elevations above 5,000 feet (1,500 m). [5]

Description

Quercus graciliformis is a deciduous tree up to 8 metres (26 ft) tall. Leaves are elliptical or lance-shaped with 8-10 shallow lobes. [5] The acorns are produced biennially.

References

  1. ↑ "Quercus graciliformis". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 30 July 2015.
  2. ↑ Texas A&M University
  3. ↑ Nixon, K. et al. 1998. Quercus graciliformis Archived June 27, 2014, at the Wayback Machine.. 2006 IUCN Red List of Threatened Species. Archived June 27, 2014, at the Wayback Machine. Downloaded on 23 August 2007.
  4. ↑ Biota of North America Program 2014 county distribution map
  5. 1 2 Flora of North America, Quercus graciliformis (Chisos oak) 1934.


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