Original: Some genera (e.g. Cordyline and Dracaena) are sometimes separated off into a separate family, Dracaenaceae, though recent research has tended to incorporate these into a larger family Ruscaceae.
Simplified: This includes for example Cordyline and Dracaena, which are sometimes separated off into a separate family, Dracaenaceae. Recent research has tended to incorporate these into a larger family Ruscaceae, though.