Quercus ajoensis

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Ajo Mountain scrub oak
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Species: Q. ajoensis
Binomial name
Quercus ajoensis
C.H.Mull. 1954
Quercus ajoensis range map 1.png
Natural range of Quercus ajoensis
  • Quercus turbinella var. ajoensis (C.H.Mull.) Little
  • Quercus turbinella subsp. ajoensis (C.H.Mull.) Felger & C.H.Lowe

Quercus ajoensis is an uncommon North American shrub with the common name Ajo Mountain scrub oak. It has been found in Arizona and Baja California Sur.[2][3] There are some reports of the species in southern New Mexico, the populations there intergrading with the related Q. toumeyi. Similary, some collections from Utah seem to be intergradations between Q. ajoensis and either Q. turbinella or Q. gambelii [4]

Quercus ajoensis is a usually a shrub but occasionally attains the stature of small trees up to 3 m (10 feet) tall. Leaves are narrowly egg-shaped, up to 5 cm (2 inches) long, with sharp pointed teeth.[4]

The species is named for the Ajo Mountains in western Pima County, Arizona, southwest of the town of Ajo.[4] The word "ajo" is Spanish for "garlic."


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