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composite family Explained

composite family at English => English (The Britannica Concise) Of Explained:

Family Compositae, one of the largest plant families (also known as Asteraceae, daisy family, and aster family), which contains more than 1,100 genera and almost 20,000 species of herbaceous plants, shrubs, and trees, found throughout the world. Though diverse in habit and habitat, composites tend to grow in sunlit places in temperate and subtropical regions. The family includes many garden ornamentals, incl. ageratums, asters, chrysanthemums, cosmos, dahlias, marigolds, and zinnias. Some genera include weeds such as dandelion, ragweed, and thistle. Artemisia, artichoke, endive, safflower, salsify, lettuce, and sunflower are important for the products derived from their flowers, seeds, leaves, roots, or tubers. Flower heads in this family are composed of many small flowers (florets) surrounded by bracts. Bell-shaped disk florets form the center of each head; strap-shaped ray florets extend out like petals from the center and are sometimes reflexed (bent back). Some species have flowers with only disk or only ray florets.