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Quercus chrysolepis, commonly termed canyon live oak, canyon oak, golden cup oak or maul oak, is a North American species of evergreen oak.Its leaves are a glossy dark green on the upper surface with prominent spines; a further identification arises from the leaves of canyon live oak being geometrically flat.
Quercus agrifolia, the California live oak, [3] or coast live oak, is an evergreen [4] live oak native to the California Floristic Province.Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree. [5]
An oak is a hardwood tree or shrub in the genus Quercus of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn , borne within a cup. The genus is widely distributed in the Northern Hemisphere ; it includes some 500 species, both deciduous and evergreen .
Quercus douglasii is a medium-sized tree with sparse foliage, generally 6–20 meters (20–66 feet) tall, with a trunk 36–60 centimeters (1–2 ft) in diameter at breast height. [5] Trunks are typically solitary, but some trees have multiple trunks. [5] [8] The tallest recorded specimen was found in Alameda County, at 28.7 m (94 ft).
The composition and characteristics of California oak woodlands varies across the state, but are defined by three main oak species throughout coastal regions: coastal live oak, Englemann oak, and Oregon white oak. [5] [6] The concentration of each of these oak species correlates with the location of the woodland throughout California. [7]
Betula papyrifera is a pioneer species, meaning it is often one of the first trees to grow in an area after other trees are removed by some sort of disturbance. Typical disturbances colonized by paper birch are wildfire , avalanche , or windthrow areas where the wind has blown down all trees.
The canyon tree frog (Dryophytes arenicolor) is a species of tree frog native to the rocky plateau areas of southern United States, primarily in New Mexico and Arizona, but it also ranges to Utah, Texas, and Colorado, and as far south as the Mexican states of Michoacán, México, Guanajuato, Guerrero, and Oaxaca.
Celtis reticulata was one of the species analyzed in a pollen core sampling study in northern Arizona, in which the early to late Holocene flora association was reconstructed; this study in the Waterman Mountains (Pima County, Arizona) demonstrated that C. reticulata was found to be present after the Wisconsinan glaciation, but is not a current taxon of this former Pinyon–juniper woodland ...