Xerophytes.Plants which grow in very dry soils; e.g., most hens, Ammophila (Psamma) arenaria, Elymus arenarius, Anasis aretioides, Zilla macro ptera, Sedum acre, Bupleurum spinosum, rtemisia herba-alba, Zollikofferia arborescens.
Of the best hay and pasture grasses, Agropyrum Elymus, Stipa, Bromus, Agrostis, Calamagrostes and Poa, there are 59 species.
Elymus arenarius (lyme grass) occurs on sandy sea-shores in the north temperate zone and is a useful sand-binder.