Noun
a family of Ranunculaceae
Source: WordNetRanunculaceae species, including Clematis and Ranunculus have an etaerio of achenes, Calotropis has an etaerio of follicles, and Rubus species like raspberry, have an etaerio of drupelets. Source: Internet
The prairie crocus or pasque flower (Pulsatilla patens) belongs to the buttercup family ( Ranunculaceae ). Source: Internet