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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 ...
Colobanthus muscoides is a low-growing, moss-like flowering cushion plant in the family Caryophyllaceae, found on islands in the south-western Pacific Ocean, especially in the subantarctic region. The specific epithet comes from the Latin muscus (moss) and -oides (resembling), with reference to its growth habit.
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]
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.
Pterygopappus is a genus of flowering plants in the tribe Gnaphalieae within the family Asteraceae. [1] [2] There is only one known species, Pterygopappus lawrencii (sage cushion plant), which is endemic to alpine Tasmania. It forms thick, light blue/green mats with densely packed leaves.
The large mat is commonly interspersed with other cushion plant species such as Dracophyllum minimum and Donatia novae-zelandiae. [2] The leaves are bright green, thick, crowded and sheathing from the base to a pointed tip with a single fine hair, the blades 2 millimetres (1 ⁄ 8 in) long. [3] Flowering occurs from December–February.
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.
The inflorescence consists of 120-190 conspicuous white, deep pink or red pin cushion shaped flowers in the leaf axils. The pedicels are 5.5–9.5 mm (0.22–0.37 in) long and smooth. The perianth is dark pink to red, the pistil 14–19.5 mm (0.55–0.77 in) long, cream-white or occasionally red or dark pink.