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Plant habit refers to the overall shape of a plant, and it describes a number of components such as stem length and development, branching pattern, and texture. While many plants fit neatly into some main categories, such as grasses, vines, shrubs, or trees, others can be more difficult to categorise.
The leaf lobes of Grevillea rivularis are described as divaricate. [2]In botany, the term is often used to describe the branching pattern of plants.Plants are said to be divaricating when their growth form is such that each internode diverges widely from the previous internode, producing an often tightly interlaced shrub or small tree. [3]
Branching, with branches having unequal diameters, such as a trunk and its branch. Contrast isotomic. annual A plant that completes its life cycle (i.e. germinates, reproduces, and dies) within a single year or growing season. annulus 1. A ring-like structure; in the form of a ring.
A branch, also called a ramus in botany, is a stem that grows off from another stem, or when structures like veins in leaves are divided into smaller veins. [ 1 ] History and etymology
Plant morphology treats both the vegetative structures of plants, as well as the reproductive structures. The vegetative (somatic) structures of vascular plants include two major organ systems: (1) a shoot system, composed of stems and leaves, and (2) a root system. These two systems are common to nearly all vascular plants, and provide a ...
An equivalent formulation is that if a parent branch splits into two child branches, then the cross-sectional diameters of the parent and the two child branches form a right-angled triangle. One explanation is that this allows trees to better withstand high winds. [40] Simulations of biomechanical models agree with the rule. [41]
A cladogram (from Greek clados "branch" and gramma "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be ...
If the sympodium occurs alternately, e.g. on the right and then the left, the branching pattern is called a scorpioid cyme or cincinus (also spelled cincinnus). Leader displacement may result: the stem appears to be continuous, but is in fact derived from the meristems of multiple lateral branches, rather than a monopodial plant whose stems ...