Search results
Results From The WOW.Com Content Network
Trees play a significant role in reducing erosion and moderating the climate. They remove carbon dioxide from the atmosphere and store large quantities of carbon in their tissues. Trees and forests provide a habitat for many species of animals and plants. Tropical rainforests are among the most biodiverse habitats in the world.
Pando, a colony of quaking aspen, is one of the oldest-known clonal trees. Recent estimates of its age range up to 14,000 years old, and 18,000 years by the latest (2024) estimate. [1] It is located in Utah, United States. This is a list of the oldest-known trees, as reported in reliable sources. Definitions of what constitutes an individual ...
Oak tree associated with the early history of the Scout Association: Ivenack Oak Pedunculate oak (Quercus robur) Ivenack, Mecklenburg-Western Pomerania, Germany 800 A huge and ancient pedunculate oak thought to be about 800 years old, 35 m tall, 11 m in girth at breast height and 16.5 m near the ground.
Most of these plants have true roots and leaves, and many were quite tall. The tree-like Archaeopteris, ancestral to the gymnosperms, and the giant cladoxylopsid trees had true wood. These are the oldest known trees of the world's first forests. Prototaxites was the fruiting body of an enormous fungus that stood more than 8 meters tall. By the ...
The dominant tree groups today are all seed plants, the gymnosperms, which include the coniferous trees, and the angiosperms, which contain all fruiting and flowering trees. No free-sporing trees like Archaeopteris exist in the extant flora. It was long thought that the angiosperms arose from within the gymnosperms, but recent molecular ...
Christmas tree decorated with lights, stars, and glass balls Glade jul by Viggo Johansen (1891), showing a Danish family's Christmas tree North American family decorating Christmas tree (c. 1970s) A Christmas tree is a decorated tree, usually an evergreen conifer , such as a spruce , pine or fir , or an artificial tree of similar appearance ...
Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed in a tree. As well as dating them, this can give data for dendroclimatology , the study of climate and atmospheric conditions during different periods in history from the wood of old trees.
A pine is any conifer tree or shrub in the genus Pinus (/ ˈ p aɪ n ə s /) [2] of the family Pinaceae. Pinus is the sole genus in the subfamily Pinoideae.. World Flora Online accepts 187 species names of pines as current, with additional synonyms, making it the largest family among the conifers. [3]