is a specific kind of: plant order.

has as a member: family Piperaceae, pepper family, Piperaceae | Chloranthaceae, family Chloranthaceae | family Saururaceae, lizard's-tail family, Saururaceae.

is a member of: class Dicotyledonae, class Dicotyledones, class Magnoliopsida, Dicotyledonae, Dicotyledones, Magnoliopsida.