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| ==Distribution== | ==Distribution== | ||
| The species has been found only in the ], within ] of ], and a few miles southeast into the state of ] in northeast Mexico.<ref></ref> It is threatened by ].<ref>Nixon, K. ''et al.'' 1998. {{webarchive |
The species has been found only in the ], within ] of ], and a few miles southeast into the state of ] in northeast Mexico.<ref></ref> It is threatened by ].<ref>Nixon, K. ''et al.'' 1998. {{webarchive|url=https://web.archive.org/web/20140627000000/http://www.iucnredlist.org/search/details.php/30954/all |date=June 27, 2014 }}. {{webarchive|url=https://web.archive.org/web/20140627000000/http://www.iucnredlist.org/ |date=June 27, 2014 }} Downloaded on 23 August 2007.</ref><ref></ref> | ||
| It grows on dry, rocky canyon floors at elevations above {{convert|5000|ft|m}}.<ref name=efloras></ref> | It grows on dry, rocky canyon floors at elevations above {{convert|5000|ft|m}}.<ref name=efloras></ref> | ||
Revision as of 22:25, 5 April 2018
| Quercus graciliformis | |
|---|---|
| Conservation status | |
 Critically Endangered (IUCN 3.1) | |
| 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 Cory & Parks | |
Quercus graciliformis, ( also known as the Chisos oak or slender oak,) is a rare North American species of oak tree in the beech family.
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. The acorns are produced biennially.
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. It is threatened by habitat loss.
It grows on dry, rocky canyon floors at elevations above 5,000 feet (1,500 m).
References
- Beckman, E. (2017). "Quercus graciliformis". The IUCN Red List of Threatened Species. 2017. IUCN: e.T30954A63729730. doi:10.2305/IUCN.UK.2017-2.RLTS.T30954A63729730.en. Retrieved 8 November 2017.
- NRCS. "Quercus graciliformis". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 30 July 2015.
- ^ Flora of North America, Quercus graciliformis (Chisos oak) 1934.
- Texas A&M University
- 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.
- Biota of North America Program 2014 county distribution map
External links
 | This Fagales article is a stub. You can help Misplaced Pages by expanding it. |
- IUCN Red List critically endangered species
- Quercus
- Endemic flora of Texas
- Flora of Coahuila
- Flora of the U.S. Rio Grande Valleys
- Big Bend National Park
- Plants described in 1934
- Critically endangered flora of North America
- Critically endangered biota of Mexico
- Critically endangered flora of the United States
- Fagales stubs