Stout and usually very tall perennials, with showy yellow flowers, the best known of which is Helianthus multiflorus fl. pl., of which plenty may be seen in Euston Square and other places in London. As a rule these are all better fitted for rough places than for gardens, where, like many other plants mentioned in these pages, they will tend to form a vigorous herbaceous covert. H. rigidus is a brilliantly showy plant, running very freely at the root, and an excellent subject for naturalisation. H. giganteus, common in thickets and swamps in America; and growing as high as 10 ft., is also desirable. The showy and larger American Rudbeckias, such as laciniata, triloba, and also the small but showy hirta, virtually belong to the same type. All these plants, and many others of the tall yellow-flowered composites that one sees conspicuous among herbaceous vegetation in America, would produce very showy effects in autumn, and might perhaps more particularly interest those who only visit their country seats at thai time of year. The Silphiums, especially the compass plant (S. laciniatum), and the cup plant (S. perfoliatum), are allied in general aspect and character to the Helianthuses, and are suitable for the same purposes.

Sun Rose on limestone rocks.