Are Mertensia and Centranthus types of flowering plants?
Centranthus Centranthus is a flowering plant genus comprising herbs and subshrubs native to Southern Europe. It is in the Caprifoliaceae family. There are about twelve species in the genus. Some "Centranthus" are known as introduced species in other parts of the world, including "Centranthus ruber" in the western United States and "Centranthus macrosiphon" in Western Australia.
Disanthus cercidifolius Disanthus is a species of flowering plant in the family Hamamelidaceae.