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Melaleuca quinquenervia, commonly known as the broad-leaved paperbark, paper bark tea tree, punk tree or niaouli, is a small- to medium-sized tree of the myrtle family, Myrtaceae. It grows as a spreading tree up to 20 m (70 ft) tall, with its trunk covered by a white, beige and grey thick papery bark.
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. All are evergreen, and the leaves vary in size from minute and scale-like (M. micromera) to 270 mm (11 in) long (M. leucadendra ...
The leaves are pinnately compound on older trees but bipinnately compound on vigorous young trees. [4] The leaflets are 1.4–3.6 cm (1 ⁄ 2 – 1 + 1 ⁄ 2 in) long when compound and very slightly smaller when bipinnate. [7] The leaves are green in summer and turn yellow in autumn in shades ranging from cream and tan to golden yellow. [8]
Columnist Bill Lamont noticed that some of his trees looked like October foliage in August. Why are maple leaves turning yellow and dropping early? A Penn State forester explains
In the north of its range, wet winters often promote a brown to black leaf discoloration due to fungal infections; [6] [7] the stain lasts until the leaves naturally detach at the end of their lifespan. In spring, the tree bears sprays of small white to pink bell-like flowers, [4] and in autumn, red berries. [5]
The trees grow to a height of 15–25 m (49–82 ft). The characteristic bark is smooth, powdery and greenish yellow, although new twigs are purple, flaking later to reveal the characteristic yellow. [4] It is one of the few trees where photosynthesis takes place in the bark. Straight, white spines grow from the branch nodes in pairs. The ...
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
The bark of Pinus thunbergii is made up of countless shiny layers. Bark is the outermost layer of stems and roots of woody plants. Plants with bark include trees, woody vines, and shrubs. Bark refers to all the tissues outside the vascular cambium and is a nontechnical term. [1] It overlays the wood and consists of the inner bark and the outer ...