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Most trees begin life with a taproot, [3] but after one to a few years the main root system changes to a wide-spreading fibrous root system with mainly horizontal-growing surface roots and only a few vertical, deep-anchoring roots. A typical mature tree 30–50 m tall has a root system that extends horizontally in all directions as far as the ...
The oils, as well as poultices made from leaves and flowers, are also commonly used for traditional medicine. [16] [12] The leaves contain compounds that are poisonous to fish and can be used as fish poison. [16] The sap of the tree is poisonous and is used to make poison arrows in Samoa. [20] The mature fruit is poisonous enough to use as rat ...
A listing of lists of trees. List of individual trees, including actual and mythical trees; List of largest giant sequoias; List of old growth forests;
Welwitschia has an elongated shallow root system consisting of "a tapering taproot with one or more non-tapering extensions, some pronounced lateral roots, and a network of delicate spongy roots" [14] and a woody fibrous unbranched main stem. [12] The roots extend to a depth roughly equal to the span of the living leaves from tip to tip. [12]
Smilax is a genus of about 300–350 species, found in the tropics and subtropics worldwide. [1] They are climbing flowering plants, many of which are woody and/or thorny, in the monocotyledon family Smilacaceae, native throughout the tropical and subtropical regions of the world.
The flowers are produced in scented pale cream spherical inflorescences, clustered at the nodes and towards the ends of the branches. The pale brown pods contain 5–10 elliptical, flattened green seeds and are 5–19 cm (2.0–7.5 in) long, straight, flat and rather papery, the segments are mostly longer than they are wide, often breaking up ...
Flower-bud enclosed in a two-valved, caducous bract. The alternate leaves are simple, pinnately veined, measuring 125–150 mm (5–6 in) long and wide. They have four lobes, and are heart-shaped or truncate or slightly wedge-shaped at base, entire, and the apex cut across at a shallow angle, making the upper part of the leaf look square ...
The following is a list of individual trees. Trees listed here are regarded as important or specific by their historical, national, locational, natural or mythological context. The list includes actual trees located throughout the world, as well as trees from myths and religions .