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Krummholz Pinus albicaulis in Wenatchee National Forest Wind-sculpted krummholz trees, Ona Beach, Oregon. Krummholz (German: krumm, "crooked, bent, twisted" and Holz, "wood") — also called knieholz ("knee timber") — is a type of stunted, deformed vegetation encountered in the subarctic and subalpine tree line landscapes, shaped by continual exposure to fierce, freezing winds.
In total, over 300 species of plants grow in the valley. The forest in Qinngua Valley is a thicket consisting mainly of downy birch (Betula pubescens) and gray-leaf willow (Salix glauca), growing up to 7–8 metres (23–26 ft) tall. Growing sometimes to tree height is the Greenland mountain ash (Sorbus decora), which is usually a shrub. [1]
The flora of the alpine tundra is characterized by plants that grow close to the ground, including perennial grasses, sedges, forbs, cushion plants, mosses, and lichens. [28] The flora is adapted to the harsh conditions of the alpine environment, which include low temperatures, dryness, ultraviolet radiation, and a short growing season.
Each of the trees in this stand is a genetically identical male that has reproduced vegetatively. Although no single tree in this stand is of that age, the stand itself as a single organism has existed that long. [116] Individual trees in the clonal patch have been listed as having ages of 2000 [117] [118] or even to 3000 years old. [119] [120]
Native eastern white pine, Sylvania Wilderness, Michigan Partial distribution map of P. strobus in North America. P. strobus is found in the nearctic temperate broadleaf and mixed forests biome of eastern North America. It prefers well-drained or sandy soils and humid climates, but can also grow in boggy areas and rocky highlands.
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It can grow into a massive tree with many examples hundreds of years old. Around ten trees are known from the past and present with a diameter of 4 m (13 ft) or more with several specimens around 100 m 3 (3,500 cu ft) in total volume. [5] Like other plane trees, its leaves are borne alternately on the stem, deeply lobed, and palmate or maple ...
A gay Georgia couple convicted of sickening sexually abuse of their two adopted sons will spend the rest of the lives behind bars.. William and Zachary Zulock, 34 and 36, were each sentenced last ...