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aster
Book article from: The Columbia Encyclopedia, Sixth Edition
...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 ), all members of...
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Composite Family (Compositaceae)
Encyclopedia entry from: The Gale Encyclopedia of Science
...Composites as weeds Resources The composite or aster family (Asteraceae) is one of the largest...The most species-rich genera in the aster family are Senecio (about 1, 500 species...600 species). Various members of the aster family are familiar species in natural...
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fleabane
Book article from: The Columbia Encyclopedia, Sixth Edition
...distributed herbs of the family Asteraceae ( aster family), especially abundant in temperate...to pink and purple, resemble daisies or asters, hence many of the common names, e...species), widespread weeds, and the beach aster, or seaside daisy ( E. glaucus ), of...
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daisy
Book article from: The Columbia Encyclopedia, Sixth Edition
...name for several common wildflowers of the family Asteraceae ( aster family). The daisy of literature, the true daisy, is Bellis...synonym for the black-eyed Susan ; Michaelmas daisy, for an aster . The seaside daisy and daisy fleabane are species of the fleabane...
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Mitosis
Encyclopedia entry from: The Gale Encyclopedia of Science
...membrane. This arrangement of microtubules — called an aster because of its star-like pattern — is thought to...equipped with rigid cell walls, but neither centrioles nor asters, also grow by mitotic division. As prophase continues, a...
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sepal
Book article from: The Columbia Encyclopedia, Sixth Edition
...green leaflike structures at the base of the flower head in the aster family are not true sepals but bracts; the sepals are modified...a circle of tiny white hairs on the ovary (the pappus; see aster ). The sepals are sometimes fused into a tube around the base...
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Prairie
Encyclopedia entry from: The Gale Encyclopedia of Science
...Leguminosae), or flowering peas and clovers, and composites (Asteraceae), such as sunflowers, goldenrods, black-eyed susan, asters, and coneflowers. Most of the prairie has developed since the most recent Ice Age, as determined from the dating of fossilized...
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white snakeroot
Book article from: The Columbia Encyclopedia, Sixth Edition
white snakeroot North American woods perennial ( Eupatorium urticifolium ) of the family Asteraceae ( aster family), having a flat-topped cluster of small white flowers. It is of the same genus as the boneset and joe-pye weed...
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joe-pye weed
Book article from: The Columbia Encyclopedia, Sixth Edition
joe-pye weed , name for a tall North American plant ( Eupatorium purpureum ) of the family Asteraceae ( aster family), having small, usually pinkish-purple blossoms in large terminal clusters. The name comes from that of a Native American...
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gaillardia
Book article from: The Columbia Encyclopedia, Sixth Edition
gaillardia , any plant of the genus Gaillardia of the Asteaceae family ( aster family), including annual, biennial, and perennial herbs with showy heads of red and/or yellow ray flowers and usually purple...
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