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.
Frasera fastigiata Frasera fastigiata (syn. "Swertia fastigiata") is a species of flowering plant in the gentian family known by the common name clustered green gentian. It is native to the northwestern United States, where it grows in meadows and other mountain habitat. It is a perennial herb producing a single stem which grows erect and often exceeds a meter in height. The basal leaves have oval or spoon-shaped blades up to 30 centimeters long by 10 wide. Leaves higher on the stem may be smaller and narrower. Some of the leaves have white margins. The inflorescence is a dense panicle atop the stem, sometimes interrupted into a series of clusters of flowers. Each flower has a corolla of four pointed lobes each roughly a centimeter long. They are greenish, often tinged with yellow or blue. There are four stamens tipped with large anthers and a central ovary.