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Adansonia is a genus made up of eight species of medium-to-large deciduous trees known as baobabs (/ ˈ b aʊ b æ b / or / ˈ b eɪ oʊ b æ b /) or adansonias. They are placed in the family Malvaceae, subfamily Bombacoideae. They are native to Madagascar, mainland Africa, and Australia. [2] The trees have also been introduced to other regions ...
The shape of the tree is an adaptation for survival in arid conditions with low amounts of soil, such as in mountaintops. The large, packed crown provides shade and reduces evaporation. This shade also aids in the survival of seedlings growing beneath the adult tree, explaining why the trees tend to grow closer together. [1]
The tree growth habit is an evolutionary adaptation found in different groups of plants: by growing taller, trees are able to compete better for sunlight. [14] Trees tend to be tall and long-lived, [15] some reaching several thousand years old. [16] Several trees are among the oldest organisms now living. [17]
Eucalyptus deglupta is a fast-growing tree that typically reaches a height of 60–75 m (197–246 ft) with the trunk up to 240 cm (94 in) in diameter and with buttresses up to 4 m (13 ft) high. It has smooth, orange-tinted bark that sheds in strips, revealing streaks of pale green, red, orange, grey, and purplish brown.
Mahogany species can crossbreed when they grow in proximity, and the hybrid between S. mahagoni and S. macrophylla is widely planted for timber. The history of the American mahogany trade dates back to the 17th century when the wood was first noticed by Europeans during the Spanish colonization of the Americas.
Christmas tree cultivation is an agricultural, forestry, and horticultural occupation which involves growing pine, spruce, and fir trees specifically for use as Christmas trees. The first Christmas tree farm was established in 1901, but most consumers continued to obtain their trees from forests until the 1930s and 1940s.
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Aerial photograph of the swastika on November 14, 2000, from a German tabloid. The forest swastika was a patch of larch trees covering 0.36 ha (0.89 acres) area of pine forest near Zernikow, Uckermark district, Brandenburg, in northeastern Germany, arranged with their light colors to look like a swastika.