primroses Definition

any of a genus (Primula of the family Primulaceae, the primrose family) of perennial herbs with large tufted basal leaves and showy variously colored flowers

any of several dicotyledonous plants of a family (Onagraceae, the evening-primrose family) and especially of the type genus (Oenothera); especially : a coarse biennial herb (O. biennis) of North America with yellow flowers that open in the evening