Meaning : A group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants). Contains 14 families including: Caryophyllaceae (carnations and pinks). Aizoaceae. Amaranthaceae. Batidaceae. Chenopodiaceae. Cactaceae (order Opuntiales). Nyctaginaceae. Phytolaccaceae. Corresponds approximately to order Caryophyllales. Sometimes classified as a superorder.