A cultivar of Dendranthema x grandiflorum Kitam. Tassel flowered chrysanthemum.  ‘This large, strong and broad, deep-green, shiny-leaved variety is one of the latest of all in blooming; but its lovely flowers are larger and more showy than those of any white-flowered variety, and endure to the end of January.  No flower in this chilly climate stands the cold so well, or so long continues to beguile the fancy of a florist by its protracted opening, by its hardihood in expansion, and by the soft hew of its snowy blossoms; carrying on, as it were, the flowering beauty of lingering autumn into the bosom of winter, whose ice at length closes the temple of Flora for a time, until the herald flowers of spring appear amidst the melting snow as if impatient of delay.’  [FC p.73/1833].