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Tree structures can depict all kinds of taxonomic knowledge, such as family trees, the biological evolutionary tree, the evolutionary tree of a language family, the grammatical structure of a language (a key example being S → NP VP, meaning a sentence is a noun phrase and a verb phrase, with each in turn having other components which have ...
The root has depth zero, leaves have height zero, and a tree with only a single vertex (hence both a root and leaf) has depth and height zero. Conventionally, an empty tree (a tree with no vertices, if such are allowed) has depth and height −1. A k-ary tree (for nonnegative integers k) is a rooted tree in which each vertex has at most k children.
This is a very popular ornamental tree in subtropical and tropical climates, grown for its scented flowers and also used as a food item in Indian cuisine.In the Neotropics, it can be used to attract hummingbirds—such as sapphire-spangled emerald (Amazilia lactea), glittering-bellied emerald (Chlorostilbon lucidus), or white-throated hummingbird (Leucochloris albicollis)—into gardens and ...
The leaves have also been used for fodder, [36] and Queensland farmers often leave bottle trees as a potential food source when land is cleared. [3] During drought conditions, whole trees have been felled to feed stock. The soft edible pulp inside the trunk is exposed by removing the bark. [36]
Leafless; having no leaves. [20] apical 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-
The number of leaves. Forest A set of one or more disjoint trees. Ordered tree A rooted tree in which an ordering is specified for the children of each vertex. Size of a tree Number of nodes in the tree.
A k-path is a k-tree with at most two leaves, and a k-caterpillar is a k-tree that can be partitioned into a k-path and some k-leaves, each adjacent to a separator k-clique of the k-path. In this terminology, a 1-caterpillar is the same thing as a caterpillar tree, and k -caterpillars are the edge-maximal graphs with pathwidth k .
Banyan trees are an example of a strangler fig that begins life as an epiphyte in the crown of another tree. Their roots grow down and around the stem of the host, their growth accelerating once the ground has been reached. Over time, the roots coalesce to form a pseudotrunk, which may give the appearance that it is strangling the host.