INVOLUCRAL BRACT Meaning and
Definition
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An involucral bract is a term commonly used in botany to describe a specialized type of leaf-like structure that surrounds and protects the base of a flower head or inflorescence. These bracts are typically found in flowering plants belonging to the family Asteraceae, which includes sunflowers, daisies, and asters, among others.
Involucral bracts are usually arranged in a whorl or a series of concentric rings surrounding the flower head, and they collectively form an outer protective covering called an involucre. The primary function of the involucre is to offer support and protection to the flowers within, acting as a shield against potential damage from environmental factors, such as wind or grazing animals.
The involucral bracts themselves often differ in shape, color, and texture from the leaves of the plant. They can vary in size, with some being small and inconspicuous, while others are large and showy, serving additional roles as attractive structures to aid in pollination. These bracts may also differ in morphology, with some being narrow and pointed, while others are broad and flat.
In summary, an involucral bract is a specialized leaf-like structure that surrounds the base of a flower head or inflorescence in the family Asteraceae. Its primary function is to provide protection and support to the flowers within the involucre, while also potentially aiding in pollination.
Etymology of INVOLUCRAL BRACT
The term "involucral bract" is composed of two parts: "involucral" and "bract".
The word "involucral" comes from the Latin word "involucrum", which means "a wrapping" or "a covering". In botany, "involucral" refers to structures that surround or enclose other parts of a plant. In the case of an involucral bract, it refers to a modified leaf or scale that surrounds a flower cluster or inflorescence.
The word "bract" also has Latin origins, derived from the Latin word "bractea", meaning "a thin metal plate", "a foil", or "a thin leaf". In botany, a bract is a specialized leaf-like structure that is usually smaller, different in shape or color, and located at the base of a flower or inflorescence.
