Definitions for callistephus
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Callistephus, genus Callistephus(noun)
one species: erect Asiatic herb with large flowers
Callistephus is a monotypic genus of flowering plants in the aster family, Asteraceae, containing the single species Callistephus chinensis. Its common names include China aster and annual aster. It is native to China and Korea. and it is cultivated worldwide as an ornamental plant. This is an annual or biennial herb with one erect, mostly unbranched stem growing 20 to 100 centimeters tall. The alternately arranged leaves vary in shape or size. The basal leaves usually fall away be flowering. Leaves around the middle of the stem are a few centimeters long and are borne on winged petioles. The blades have serrated edges. Leaves toward the top may have smooth edges. The large solitary flower head grows at the top of the stem and sometimes on branches. The head is lined with layers of phyllaries, those in the outer layer large and leaflike, measuring up to 3 centimeters long. The inner layer can be purple-tinged. The head contains one or two rings of ray florets, most often in shades of reddish purple. Cultivated varieties can have ray florets in most any color, including red, pink, blue, purple, and white. They are up to 3.5 centimeters long.
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"callistephus." Definitions.net. STANDS4 LLC, 2015. Web. 29 Nov. 2015. <http://www.definitions.net/definition/callistephus>.