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Evergreen. A silver fir shoot showing three successive years of retained leaves. 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.
An evergreen forest is a forest made up of evergreen trees. They occur across a wide range of climatic zones, and include trees such as conifers and holly in cold climates, eucalyptus, live oak, acacias, magnolia, and banksia in more temperate zones, and rainforest trees in tropical zones.
Engelm. The blue spruce (Picea pungens), also commonly known as green spruce, [3] Colorado spruce, or Colorado blue spruce, is a species of spruce tree native to North America in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming. [4] It is noted for its blue-green colored needles, and has therefore been used as an ornamental tree in many ...
Seeds of Taxus baccata. Yews are small to medium-sized evergreen trees, growing 10–20 m (35–65 ft) (exceptionally up to 28 m or 92 ft) tall, with a trunk up to 2 m (6 ft 7 in) (exceptionally 4 m or 13 ft 1 in) in diameter. The bark is thin, scaly brown, and comes off in small flakes aligned with the stem. The leaves are flat, dark green, 1 ...
Arbutus menziesii is an evergreen tree about 10 to 25 metres (33 to 82 feet) in height, but in the right conditions up to 30 m (98 ft). The trunk is usually about 60 centimetres (24 inches) thick. [4] The thin bark is a rich orange-red, and when mature naturally peels away in thin sheets, leaving a greenish, silvery appearance that has a smooth ...
Ecological succession is the process of change in the species that make up an ecological community over time. The process of succession occurs either after the initial colonization of a newly created habitat, or after a disturbance substantially alters a pre-existing habitat. [1] Succession that begins in new habitats, uninfluenced by pre ...
Description. Pinus sylvestris is an evergreen coniferous tree growing up to 35 metres (115 feet) in height [4] and 1 m (3 ft 3 in) in trunk diameter when mature, [5] exceptionally over 45 m (148 ft) tall and 1.7 m (51⁄2 ft) in trunk diameter on very productive sites. The tallest on record is a tree over 210 years old growing in Estonia which ...
Synonyms. Veitchia Lindley. A spruce is a tree of the genus Picea (/ paɪˈsiː.ə / py-SEE-ə), [1] a genus of about 40 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. Picea is the sole genus in the subfamily Piceoideae.