plant order - the order of plants

Ericaceae, family Ericaceae, heath family - heathers

Clethraceae, family Clethraceae, white-alder family - coextensive with the genus Clethra

diapensia family, Diapensiaceae, family Diapensiaceae - north temperate low evergreen plants; in some classifications placed in its own order Diapensiales

Epacridaceae, epacris family, family Epacridaceae - Australasian shrubs or small trees

family Lennoaceae, Lennoaceae - family of fleshy parasitic herbs lacking green foliage and having heads of small flowers; California and Mexico

family Pyrolaceae, Pyrolaceae, wintergreen family - evergreen herbs of temperate regions: genera Pyrola; Chimaphila; Moneses; Orthilia

family Monotropaceae, Monotropaceae - used in some classification for saprophytic herbs sometimes included in the family Pyrolaceae: genera Monotropa and Sarcodes

Dilleniidae, subclass Dilleniidae - a group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorder