Amoena, amoena spectabilis, magnifica, paronychioides major aurea and amabilis; Alyssum maritimum variegatum; some of the dwarf varieties of Antirrhinum majus; Arundo Donax variegata; Begonias; Calceolarias; Cannas; Centaurea ragusina; Clematises, of which the hybrids of the Jackmanni type are best; Dahlia variabilis, and the single-flowered forms of D.
The tendency of the dunes to drift off on the landward side is prevented by the planting of bent-grass (Arundo arenaria), whose long roots serve to bind the sand together.
The most common plant here is the stiff sand-reed (Arundo arenaria), called sand-oats in Drente and Overysel, where it is much used for making mats.
Less favourable signs are furnished by such plants as Arundo Donax (in Germany), Cicuta virosa and Typha latifolia, which are found in stagnant and torpid waters.
The Arundo Donax, the tallest of European grasses, is largely grown for vine-stakes.
In the sugar-cane (Saccharum) and several allied genera the separating joints of the axis bear long hairs below the spikelets; in others, as in Arundo (a reed-grass), the flowering glumes are enveloped in long hairs.
There is, however, justification for referring some specimens to Arundo, Phragmites, and to the Bambuseae.
Everywhere on moist sandy ground are to be seen tall thickets of Arundo donax.