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.
The fleshy leaves are often reduced to a more or less cylindrical structure, as in the stonecrops (Sedum), or form closely crowded rosettes as in the house-leek (Sempervivum).
This number is, however, very variable, and often not Stonecrop (Sedum acre) slightly reduced.
1, Horizontal plan of arrangement of flower of stonecrop; 2, flower of Sedum rubens.
The largest genus, Sedum, contains about 140 species in the temperate and colder parts of the northern hemisphere; eight occur wild in Britain, including S.
Some of the best plants for carpeting the surface of the beds are: Antennaria tomentosa and Leucophytum Browni, white; Sedum acre, dasyphyllum, corsicum and glaucum, grey; and Sedum Lydium, Mentha Pulegium gibraltarica, Sagina subulata and Herniaria glabra, green.
Thyme and the small white dune-rose (Rosa pimpinellifolia) also grow in the dunes, and wall-pepper (Sedum acre), field fever-wort, reindeer moss, common asparagus, sheep's fescue grass, the pretty Solomon-seal (Polygonatum officinale), and the broadleaved or marsh orchis (Orchis latifolia).
- Flower of Sedum rubens.
- Diagrammatic section of a symmetrical pentamerous flower of Stone-crop (Sedum), consisting of five sepals (s), five petals (p) alternating with the sepals, ten stamens (a) in two rows, and five carpels (c) containing ovules.