bur marigold


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bur marigold

or

sticktight,

common name for any species of Bidens, a genus of chiefly weedy North American plants of the family Asteraceae (asteraster
[Gr.,=star], common name for the Asteraceae (Compositae), the aster family, in North America, name for plants of the genus Aster, sometimes called wild asters, and for a related plant more correctly called China aster (Callistephus chinensis
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 family) with two-pronged burlike fruits (achenes) that have gained various species such additional names as beggar-ticks, Spanish needles, tickseed, and bootjacks. A few showy yellow-flowered species are occasionally cultivated. Many of the common names are also used for other weeds with burs. Bur marigold is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Asterales, family Asteraceae.