Melaleuca cinerea (Melaleuca cinerea)
Description
Melaleucas range in size from small shrubs such as M. aspalathoides and M. concinna which rarely grow to more than 1 m (3 ft) high, to trees like M. cajuputi and M. quinquenervia, which can reach 35 m (100 ft). (One specimen of M. cajuputi reached 46 m (200 ft). Many, like M. lineariifolia, are known as paperbarks and have bark that can be peeled in thin sheets, whilst about 20% of the genus, including M. bracteata, have hard, rough bark and another 20% have fibrous bark. Every species in the genus is an evergreen, and the leaves vary in size from minute and scale-like (M. micromera) to 270 mm (10 in) long (M. leucadendra). Most have distinct oil glands dotted in the leaves, making the leaves aromatic, especially when crushed. Melaleuca flowers are usually arranged in spikes or heads. Within the head or spike, the flowers are often in groups of two or three, each flower or group having a papery bract at its base. Five sepals occur, although these are sometimes fused into a ring of tissue and five petals which are usually small, not showy, and fall off as the flower opens or soon after. The stamens vary greatly in colour, from white to cream or yellow, red, or mauve with their yellow tips (the anthers) contrasting with their "stalks" (filaments). The fruit are woody, cup-shaped, barrel-shaped, or almost spherical capsules, often arranged in clusters along the stems. The seeds are sometimes retained in the fruit for many years, only opening when the plant, or part of it, dies or is heated in a bushfire. In tropical areas, seeds are released annually in the wet season.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Magnoliopsida
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Order: Myrtales
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Family: Myrtaceae
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Genus: Melaleuca
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