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Quercus arizonica, the Arizona white oak, is a North American tree species in the beech family. It is found in Arizona , New Mexico , western Texas , Sonora , Chihuahua , Coahuila , Sinaloa , and Durango .
The oak woodlands from 800–1,200 metres (2,600–3,900 ft) in elevation are warmer and drier, with evergreen oaks predominant (principally Quercus devia; Quercus arizonica and Quercus rugosa have a limited distribution), along with lower trees and shrubs such as Dodonaea viscosa, Sideroxylon peninsulare, and Buddleia crotonoides.
Quercus engelmannii is a small tree growing to 10 metres (33 feet) tall, generally evergreen, but may be drought- deciduous during the hot, dry local summers, and has a rounded or elliptical canopy. The bark is thick, furrowed, and light gray-brown. The leaves are leathery, 3–6 centimetres (– inches) long and 1–2 cm (– in) broad, of a ...
In the northern Sierra of northern Sonora and Chihuahua, blue oak (Q. oblongifolia), Emory oak (Q. emoryi) or Arizona oak (Q. arizonica) grow in pure stands, or mixed stands with Mexican pinyon (Pinus cembroides), Pinus leiophylla var. chihuahuana, madroño (Arbutus arizonica), Quercus grisea, and Quercus chihuahuensis.
Styles short, acorns mature in 18 months, very bitter, inside of acorn shell woolly. [citation needed] Quercus cedrosensis — Cedros Island oak — # California + Baja California. Quercus chrysolepis — canyon live oak — # southwestern North America. Quercus palmeri — Palmer oak — # California, western Arizona.
The Mexican blue oak is common at elevations of 1,200 to 1,800 m (4,000–6,000 ft).It is often found on thin sandy soils in semi-arid regions and is the dominant species in lower open oak woodland where it grows in association with Arizona white oak (Quercus arizonica) and Emory oak (Quercus emoryi). [7]
P. subsect. Ponderosae. Engelm. Pinus arizonica, commonly known as the Arizona pine, is a medium-sized pine in northern Mexico, southeast Arizona, southwest New Mexico, and western Texas in the United States. It is a tree growing to 25–35 m tall, with a trunk diameter of up to 1.2 m (3 ft 11 in). The needles are in bundles of 3, 4, or 5, with ...
Pinyon–juniper woodland, also spelled piñon–juniper woodland, is a biome found mid-elevations in arid regions of the Western United States, characterized by being an open forest dominated by low, bushy, evergreen junipers, pinyon pines, and their associates. [1][2] At lower elevations, junipers often predominate and trees are spaced widely ...