Frost Aster (Symphyotrichum pilosum) also known as: White Heath Aster, Hairy Aster and Hairy White Oldfield Aster formerly: Aster pilosus Division - Magnoliaphyta Class - Magnoliopsida Order - Asterales Family - Asteraceae Genus - Symphyotrichum Weeds Taxonomic List List by Scientific Name Text Only List by Scientific Name