In Compositae besides the involucre there are frequently chaffy and setose bracts at the base of each flower, and in Dipsacaceae a membranous tube surrounds each flower.
A. margaritacea is a North American plant, 2 feet high, with flowers in clusters, white and chaffy, hence kept in a dry state and dyed in various colors.
Winged Everlasting (Ammobium) - A. alatum is a handsome everlasting from New Holland, 1 1/2 to 3 feet high, bearing white chaffy flowers with yellow discs from May till September.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.