Entry for Anaphalis margaritacea (Linnaeus) Bentham & Hooker f. [family COMPOSITAE]
Entry From
Flora of North America, Vol 19,
Names
Anaphalis margaritacea (Linnaeus) Bentham & Hooker f. [family COMPOSITAE], Gen. Pl., 2: 303. 1873
Gnaphalium margaritaceum Linnaeus [family COMPOSITAE], Sp. Pl., 2: 850. 1753
Anaphalis margaritacea var. occidentalis Greene [family COMPOSITAE]
Anaphalis margaritacea var. subalpina (A. Gray) A. Gray [family COMPOSITAE]
Discussion
Anaphalis margaretacea was widely planted as an ornamental and escaped. It apparently naturalized from its native range in both Asia and North America; it is cultivated and naturalized in Europe.
Anaphalis margaritacea has the aspect of Pseudognaphalium; it differs in being subdioecious (polygamo-dioecious; the heads either staminate or primarily pistillate) and in its distinctive cypselar vestiture. It is further recognized by its combination of rhizomatous habit, subclasping-decurrent, bicolor, revolute leaves, and distally white phyllaries. Segregate species and varieties have been described among the North American plants (in addition to the two cited above), based on variation in habit, vestiture, and leaf morphology and density, but the variants appear to be more like a complex series of ecotypes rather than broader evolutionary entities.