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In addition to the heap property, leftist trees are maintained so the right descendant of each node has the lower s-value. The height-biased leftist tree was invented by Clark Allan Crane. [2] The name comes from the fact that the left subtree is usually taller than the right subtree. A leftist tree is a mergeable heap. When inserting a new ...
At or on the apex of a structure, usually a shoot, a stem, or the trunk of a tree, e.g. an apical meristem or an apical bud. apiculate especially of leaves, ending in a short triangular point. See also Leaf shape. apiphily A form of pollination whereby pollen is distributed by honey bees. apo-A prefix meaning "away from, separate, without ...
Careya arborea is a species of tree in the Lecythidaceae family, native to the Indian subcontinent, Afghanistan, and Indochina. [3] Its common English names include wild guava, Ceylon oak, patana oak. [4] Careya arborea is a deciduous tree that grows up to 15 metres (49 ft) high. Its leaves turn red in the cold season.
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According to M.J.E. Coode, Elaeocarpus angustifolius is a tree that typically grows to a height of 40 m (130 ft) and usually has buttress roots at the base of the trunk. . The leaves are about 60–180 mm (2.4–7.1 in) long, 40–60 mm (1.6–2.4 in) wide with wavy serrations on the edges and tapering to a petiole 5–15 mm (0.20–0.59 in) long, but lacking a pulvin
An arborist practicing tree care: using a chainsaw to fell a eucalyptus tree in a park at Kallista, Victoria.. Arboriculture (/ ˈ ɑːr b ər ɪ ˌ k ʌ l tʃ ər, ɑːr ˈ b ɔːr-/) [1] is the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants.
The invention of the use of Guaiacum for syphilis. The genus is famous as the supplier of lignum vitae, which is the wood of several species in the genus. [citation needed] It is the fourth-hardest variety of wood as measured by the Janka hardness test, requiring a force of 4,500 lb f (20,000 N) to embed a steel ball 0.444 in (1.13 cm) in diameter half that distance into the wood.
Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple stems and shorter height, less than 6–10 m (20–33 ft) tall. [1] [2] Small shrubs, less than 2 m (6.6 ft) tall are sometimes termed as subshrubs. Many botanical groups have species that are shrubs, and others that are trees and herbaceous plants ...