Carnivorous plant
Plants that feed upon animals (mostly insects) and are able to utilize the animal protein for their own growth and development.
Parasitic/hemi-parasitic plant
Plants that are attached to other plants of a different species and derive nutrients from them, at least at some stage in their life cycle.
Saprophytic/hemi-saprophytic plant
Plants that derive their nutrients from dead or decaying organic matter, at least at some stage in their life cycle.