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Pappus (botany) In Asteraceae, the pappus is the modified calyx, [1] the part of an individual floret, that surrounds the base of the corolla tube in flower. It functions as a dispersal mechanism for the achenes that contain the seeds. In Asteraceae, the pappus may be composed of bristles (sometimes feathery), awns, scales, or may be absent ...
The Asteraceae were first described in the year 1740 and given the original name Compositae. [6] The family is commonly known as the aster, daisy, composite, or sunflower family. Most species of Asteraceae are herbaceous plants, and may be annual, biennial, or perennial, but there are also shrubs, vines, and trees.
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. Pappus bristles are sometimes attached to a ring called an annulus or disk at the top of the achene beak.
P. vaginatum. Binomial name. Pappophorum vaginatum. Buckley. Pappophorum vaginatum is a species of grass known by the common name whiplash pappusgrass. It is native to the Americas, where it occurs in Arizona, Texas, northern Mexico, and part of South America extending from Uruguay to Argentina. [1] This perennial grass grows up to a meter tall.
Tridax procumbens, commonly known as coatbuttons [2] or tridax daisy, is a species of flowering plant in the family Asteraceae. It is best known as a widespread weed and pest plant. It is native to the tropical Americas including Mexico, [1] but it has been introduced to tropical, subtropical, and mild temperate regions worldwide.
Enneapogon is a cosmopolitan genus of plants in the grass family. [2] [4] [5] They are also called bottle washers or pappus grass. These perennial grass species are found in tropical and warm temperate areas. They have small, narrow inflorescences. [6] [7] [8] Species [3] [9] Enneapogon asperatus - Queensland.
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