asterid dicot genus - genus of more or less advanced dicotyledonous herbs and some trees and shrubs

aster family, Asteraceae, Compositae, family Asteraceae, family Compositae - plants with heads composed of many florets: aster; daisy; dandelion; goldenrod; marigold; lettuces; ragweed; sunflower; thistle; zinnia

Anacyclus pyrethrum, pellitory-of-Spain, pellitory - small Mediterranean plant containing a volatile oil once used to relieve toothache