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composite family

noun
1.
the large and varied plant family Compositae (or Asteraceae), typified by herbaceous plants having alternate, opposite, or whorled leaves and a whorl of bracts surrounding the flower heads, which are usually composed of a disk containing tiny petalless flowers and a ray of petals extending from the flowers at the rim of the disk, some flower heads being composed only of a disk or a ray and some plants having clusters of flower heads, and including the aster, daisy, dandelion, goldenrod, marigold, ragweed, sunflower, thistle, and zinnia.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for composite family
  • The largest of all the families of flowering plants is called the composite family.
composite family in Science
composite family  
A very large family of flowering plants, Asteraceae (or Compositae), comprising about 1,100 genera and more than 20,000 species, including the daisy, lettuce, and marigold. The composite plants are eudicots and are considered to be the most highly evolved plants. Their inflorescences are characterized by many small flowers arranged in a head that resembles a single flower and arises from an involucre of bracts. A head may consist of both ray flowers and disk flowers, as in the sunflower, of disk flowers only, as in the burdock, or of ray flowers only, as in the dandelion.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for composite family

aster family

the aster, daisy, or composite family of the flowering-plant order Asterales, with more than 1,600 genera and almost 24,000 species of herbs, shrubs, and trees distributed throughout the world

Learn more about aster family with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Difficulty index for composite family

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Word Value for composite

15
18
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