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The compact growth form of cushion plants reduces air flow over the surface of the epidermis, reducing the rate of water loss. Additionally, many cushion plants have small and fleshy leaves which reduce the surface area of the plant, which reduces transpiration and conserves water. In alpine environments well above the tree line, cold is a ...
Raoulia rubra is a cushion plant belonging to the family Asteraceae and is found in the mountains of southern North Island and northern South Island, New Zealand. Its common name is scabweed. Although the whitish cushion can be two feet (60 cm ) wide it is only 25 mm (one inch) thick and looks like a lichen. The scattered tiny flowers are red. [1]
Cold-treated or wild and winter-collected seed will germinate indoors. The seed and leaves are high in lipids. It is a small cushion-forming evergreen perennial shrub, up to 15 centimetres (6 in) in height, and can trap heat in the dome. [5] It has oval blunt leathery toothless leaves, up to 1 cm (0.4 in) long, which are arranged in dense rosettes.
Phyllachne colensoi is a perennial cushion mound-forming plant with short erect stems that are densely packed. Leaves are sessile and small at only 2–3 mm long. Solitary flowers are white and held close to the cushion mound, with flowers and fruits being produced from December to March. [3]
Phlox family (Polemoniaceae) perennials include dwarf phlox, or cushion phlox (Phlox condensata), which forms dense cushions plant with tiny branchlets only 1 inch (0.025 m) long, tiny leaves only 0.2 inches (0.0051 m) long and well adapted to resist the high winds, and flowers forming a nearly solid floral blanket of the underlying plant.
Yareta is an evergreen perennial with a low, mat-like shape and hemispherical growth form that grows to around 6 m (20 ft) in diameter. [3] The self-fertile, pink or lavender flowers are hermaphroditic and are primarily pollinated by small flies in the order Diptera, as well as a variety of other small insect species, including bees, wasps, and moths.
The leaves measure to be 2-4mm long and 0.9-1.2mm wide. It can have white flowers which grow at the end of stems which are 0.2-2mm long. It generally flowers or fruits from October to May. [3] S. archeri can be distinguished from Schizacme montana and other cushion plants by its leaves.
Dracophyllum minimum, commonly known as heath cushionplant or claspleaf heath, is a species of bolster cushion plant endemic to Tasmania, Australia. [ 1 ] [ 2 ] It is a low growing, highly compacted plant with white flowers, commonly found in alpine areas of the south, centre and west of Tasmania.