the order of plants

coextensive with the genus Clethra

north temperate low evergreen plants; in some classifications placed in its own order Diapensiales

Australasian shrubs or small trees

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

evergreen herbs of temperate regions: genera Pyrola, Chimaphila, Moneses, Orthilia

heathers

coextensive with the genus Clethra

north temperate low evergreen plants; in some classifications placed in its own order Diapensiales

Australasian shrubs or small trees

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

evergreen herbs of temperate regions: genera Pyrola, Chimaphila, Moneses, Orthilia