sentences:  The white or pinkish coloration is due to the papery ray florets around individual "flowers".Rice flower was first formally described in 1804 by Étienne Pierre Ventenat who gave it the name "Gnaphalium diosmifolium" and published the description in "Jardin de la Malmaison".In 1838, Augustin Pyramus de Candolle changed the name to "Ozothamnus diosmifolius".