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A fir tree snag among living fir trees. In forest ecology, a snag refers to a standing dead or dying tree, often missing a top or most of the smaller branches.In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as coarse woody debris.
Athrotaxis cupressoides, commonly known as pencil pine, despite being a species of the family Cupressaceae and not a member of the pine family. [4] Found either as an erect shrub or as a tree, this species is endemic to Tasmania, Australia. Trees can live for upwards of 1000 years, sustaining a very slow growth rate of approximately 12 mm in ...
Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests [1] and in rivers or wetlands. [2] A dead standing tree – known as a snag – provides many of the same functions as coarse woody debris. The minimum size required for woody debris to be defined as ...
Some red color may be seen in the fissures of the bark. The species is self pruning; there tend not to be dead branches on the trees, and older trees may have very long lengths of branchless trunk below the canopy. [5] The leaves are needle-like, dark yellow-green, in fascicles of two, [6] 12–18 centimetres (4 + 3 ⁄ 4 –7 inches) long, and ...
Arbutus menziesii, or Pacific madrone (commonly madrone or madrona in the United States and arbutus in Canada), is a species of broadleaf evergreen tree in the family Ericaceae. It has waxy foliage, a contorted growth habit, and flaky bark. It is native to the western coastal areas of North America, from British Columbia to California.
Drought-stricken Oregon saw a historic die-off of fir trees in 2022 that left hillsides once lush with green conifers dotted with patches of red, dead trees.
Quercus palustris is a medium-sized deciduous tree growing to 18–22 metres (59–72 feet) tall, with a trunk up to 1 m (3 + 1 ⁄ 2 ft) in diameter. It has an 8–14 m (26–46 ft) spread. A 10-year-old tree grown in full sun will be about 8 m (26 ft) tall. Young trees have a straight, columnar trunk with smooth bark and a pyramidal canopy.
Burrs on a tree trunk in Norfolk, England. A burl (American English) or burr (British English) is a tree growth in which the grain has grown in a deformed manner. It is commonly found in the form of a rounded outgrowth on a tree trunk or branch that is filled with small knots from dormant buds. Burl formation is typically a result of some form ...