Quercus fusiformis
| Texas live oak | |
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| File:Texas Live Oak Quercus fusiformis.jpg | |
| at the Alamo in San Antonio, Texas | |
| File:Quercus fusiformis.jpg | |
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Q. fusiformis
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| Binomial name | |
| Quercus fusiformis Small 1901
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List
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Quercus fusiformis (also often referred to as Q. virginiana var. fusiformis), commonly known as Texas live oak, escarpment live oak, plateau live oak, or plateau oak, is an evergreen or nearly evergreen tree. Its native range includes the Quartz Mountains and Wichita Mountains in southwestern Oklahoma,[2] through Texas, to the Mexican states of Coahuila, Tamaulipas, and Nuevo León.[3][4]
Quercus fusiformis is an evergreen tree in the white oak section of the genus Quercus. It is distinguished from Quercus virginiana (southern live oak) most easily by the acorns, which are slightly larger and with a more pointed apex. It is also a smaller tree, not exceeding 1 meter (40 inches) in trunk diameter (compared to 2.5 m (75 inches) in diameter in southern live oak), with more erect branching and a less wide crown.[4]
Texas live oak is typically found on dry sites, unlike southern live oak, which prefers moister conditions. The tree is generally accepted to be the hardiest evergreen oak, able to withstand very cold winters with minimal leaf burn in areas as cold as USDA zone 6a.
References
- ↑ The Plant List, Quercus fusiformis Small
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Biota of North America Program 2014 county distribution map
- ↑ 4.0 4.1 Flora of North America, Quercus fusiformis Small, 1901. Texas live oak
External links
- United States Department of Agriculture Plants Profile of Quercus fusiformis
- Texas Native Plants Database, Texas A&M University: Quercus fusiformis — horticultural/ornamental tree description.
- Lady Bird Johnson Wildflower Center, University of Texas at Austin
- photo of herbarium specimen collected in Nuevo León in 2003
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