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Typical features of the genus include grey or blue-green succulent leaves, that are 3-sided or triangular in cross-section and are often covered with tiny darker transparent spots. Occasionally the leaves also have toothed margins. Another common feature is the small, year-round, pink or white flower clusters. [1]
Wilted and discolored leaves or leaves with visible pests may recover with treatment, but slimy, sunburned, torn, or holey leaves should also be removed to give your plant more energy to heal.
It can usually be distinguished from its relatives however, by its dark green leaves which become purple in full sun exposure. (This species is almost as dark as its relative Haworthia maraisii.) The leaves have a scabrous (rough) sub-tuberculate, slightly translucent surface, covered in faint, parallel lines and sometimes light flecked markings.
A flowering Fenestraria rhopalophylla, so named due to the translucent leaf window on the tips of its modified leaf.. Leaf window, also known as epidermal window, [1] and fenestration, [2] [3] is a specialized leaf structure consisting of a translucent area through which light can enter the interior surfaces of the leaf where photosynthesis can occur.
Longitudinal section of a Lithops plant, showing the epidermal window at the top, the translucent succulent tissue, the green photosynthetic tissue, and the decussate budding leaves growing between the mature leaves. The most startling adaptation of Lithops is the colouring of the leaves.
Sedum morganianum, the donkey tail or burro's tail, is a species of flowering plant in the family Crassulaceae, native to southern Mexico.It is a succulent perennial producing trailing stems up to 60 cm (24 in) long, with fleshy blue-green leaves and terminal pink to red flowers in summer. [1]
Adromischus marianiae is a very variable species reaching a height of 10–15 centimetres (3.9–5.9 in). This perennial succulent and slow-growing subshrub has usually thin and short branches and forms a small cluster of rough, warty and nearly spherical leaves resembling dried raisins, quite variable in colour but usually green or red-brown or purplish, up to 3.5 cm long.
The leaves are succulent and egg-shaped, which gave its name to the species. The stems (20 cm long, 1 cm thick) rise then fall with about 15 leaves. These leaves are 3 to 5 cm long, 1.8 to 3 cm wide and 8 to 17 mm thick. Leaves are pale blue-green to bluish-purple, looking like a sugared almond confection. [1]