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cow itch tree; primrose tree; Norfolk Island hibiscus; pyramid tree Malvaceae (mallow family) Thespesia: thespesia trees; Thespesia populnea: portia tree; milo Malvaceae (mallow family) Melastomataceae: melastome family; Tetrazygia: tetrazygia trees; Tetrazygia bicolor: Florida tetrazygia Melastomataceae (melastome family) Meliaceae: mahogany ...
In botany, the trunk (or bole) is the stem and main wooden axis of a tree, [1] which is an important feature in tree identification, and which often differs markedly from the bottom of the trunk to the top, depending on the species. The trunk is the most important part of the tree for timber production.
It is composed of water-conducting cells and associated cells which are often living, and is usually pale in colour. It transports water and minerals from the roots to the upper parts of the tree. The oldest, inner part of the sapwood is progressively converted into heartwood as new sapwood is formed at the cambium. The conductive cells of the ...
The hierarchy of biological classification's eight major taxonomic ranks.A domain contains one or more kingdoms. Intermediate minor rankings are not shown. In biology, a kingdom is the second highest taxonomic rank, just below domain.
In the cork oak (Quercus suber) the bark is thick enough to be harvested as a cork product without killing the tree; [44] in this species the bark may get very thick (e.g. more than 20 cm has been reported [45]). Some stem bark s have significantly different phytochemical content from other parts.
Tilia wood is used for carving, and almost all parts of the tree can be used for fodder, ropes or firewood. Bast and honey , which were historically the main products of Tilia , may have been an important factor in the spread of the species and its status as a typical agroforestry tree in the Middle Ages .
One tree has its crown at the height of another’s trunk. At the top the crowns of the different species of trees form a more or less closed canopy. This layer creates special ecological conditions in the underlying layers of forests. The density of the trees determines the amount of light inside the forest.
Some define a shrub as less than 6 m (20 ft) and a tree as over 6 m. Others use 10 m (33 ft) as the cutoff point for classification. [2] Many trees do not reach this mature height because of hostile, less than ideal growing conditions, and resemble shrub-sized plants. Others in such species have the potential to grow taller in ideal conditions.
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