Quercus chihuahuensis

Quercus chihuahuensis, the Chihuahua oak, is a species of oak in the beech family.[2] It is native to the region from extreme western Texas west to Sonora and south to Zacatecas and San Luís Potosí. It grows mostly at mid elevations (400–2000 m) in forests mixed with various pines and other oaks. It is one of the dominant species of the Sierra Madre Occidental in Chihuahua and Sonora.[3][4][5]

Quercus chihuahuensis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section: Quercus sect. Quercus
Species:
Q. chihuahuensis
Binomial name
Quercus chihuahuensis
Synonyms[1]
  • Quercus chihuahuensis f. amplifolia Trel.
  • Quercus chihuahuensis f. microphylloides Trel.
  • Quercus chihuahuensis f. tenuis Trel.
  • Quercus infralutea Trel.
  • Quercus jaliscensis Trel.
  • Quercus santaclarensis C. H. Muller

Quercus chihuahuensis is a tree up to 10 meters (33 feet) tall, very common in much of its range. Leaves are entire to toothed or sublobate, green on the top but yellow or gray on the underside because of a coating of velvety, stellate (star-shaped, highly branched) hairs. The species is related to Quercus arizonica and Quercus grisea, sometimes hybridizing with these two species in Texas.[2][6][7]

References
  1. "Quercus chihuahuensis Trel.". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew – via The Plant List.
  2. Trelease, Memoirs of the National Academy of Science vol 20. 1924.
  3. Stanley, P.C. 1922. Trees and Shrubs of Mexico. Contributions from the United States National Herbarium 23(2).
  4. CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City.
  5. SEINet, Southwestern Biodiversity, Arizona chapter
  6. Nixon, Kevin C. (1997). "Quercus chihuahuensis". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 3. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  7. Nixon, K. C. 1993b. The genus Quercus in Mexico. In: T. P. Ramamoorthy et al., eds. 1993. Biological Diversity of Mexico: Origin and Distribution. New York. Pp. 447-458.
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