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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.
Evergreen . In botany, an evergreen is a plant which has foliage that remains green and functional throughout the year. [1] This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many different species, the unique feature of evergreen plants lends itself to various environments ...
Leaf absorption characteristics can vary by water content, age, and other factors. [3] If absorption differences are a concern, absorption can be measured with the use of an integrating sphere. [10] For more accurate ETR values, the leaf absorption value and the ratio of PSII reaction centers to PSI reaction centers can be included in the equation.
Prunus ilicifolia flowers. It is an evergreen shrub [4] or small tree approaching 15 metres (49 feet) in height, [12] with dense, hard leaves [4] (sclerophyllous foliage). The leaves are 1.6–12 centimetres (3 ⁄ 4 – 4 + 3 ⁄ 4 inches) long with a 4–25 millimetres (1 ⁄ 8 –1 in) petiole [12] and spiny margins, somewhat resembling those of the holly.
Leaf area index (LAI) is a dimensionless quantity that characterizes plant canopies. It is defined as the one-sided green leaf area per unit ground surface area (LAI = leaf area / ground area, m 2 / m 2) in broadleaf canopies. [1] In conifers, three definitions for LAI have been used: Half of the total needle surface area per unit ground ...
Quercus rotundifolia, the holm oak or ballota oak, [4] is an evergreen oak native to the western Mediterranean region, with the majority of the population in the Iberian Peninsula and minor populations in Northwest Africa. The species was first described by Jean-Baptiste Lamarck in 1785.
The glossy, evergreen foliage forms a billowing mound, with many fragrant, pure white flowers in tight clusters [5] for several weeks during spring and early summer. The leaf blade of the leaves is leathery, 25–75 mm or 1–3 in (and rarely 125 mm or 5 in) long, 2 to 5 millimetres wide, oblong spatulate to lanceolate, obtuse with a pointed base.
Salvia mellifera (Californian black sage, also known as seel by the Mahuna [1]) is a small, highly aromatic, evergreen shrub of the genus Salvia (the sages) native to California, and Baja California, Mexico. It is common in the coastal sage scrub of Southern California and northern Baja California. [2]
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