Silvertop ash | |
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Silvertop ash at Katoomba | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Myrtaceae |
Genus: | Eucalyptus |
Species: | E. sieberi |
Binomial name | |
Eucalyptus sieberi | |
Synonyms [1] | |
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Eucalyptus sieberi, commonly known as the silvertop ash or black ash, [2] is a species of medium-sized to tall tree that is endemic to south-eastern Australia. It has rough bark on the trunk and the base of larger branches, and smooth bark above. It has lance-shaped to curved adult leaves and flower buds in groups of seven to fifteen, which bear white flowers and barrel-shaped or conical fruit.
Eucalyptus sieberi typically grows to a height of 25–45 m (82–148 ft) and does not form a lignotuber. It has rough bark on the trunk and the larger branches, and smooth, white to yellow bark above. The rough bark is thin and flaky on younger trees but, with age, it becomes thick, dark grey to black, and furrowed. Young trees have egg-shaped to lance-shaped or curved, bluish green to glaucous leaves that are 60–170 mm (2.4–6.7 in) long and 16–75 mm (0.63–2.95 in) wide. Adult leaves are the same shade of glossy green on both sides, lance-shaped to curved, 85–195 mm (3.3–7.7 in) long and 12–38 mm (0.47–1.50 in) wide on a petiole 10–20 mm (0.39–0.79 in) long.
The flower buds are arranged in leaf axils in groups of between seven and fifteen, on an unbranched peduncle 8–16 mm (0.31–0.63 in) long, with the individual buds on pedicels being 3–7 mm (0.12–0.28 in) long. Mature buds are oval to club-shaped, 3–5 mm (0.12–0.20 in) long and 3–4 mm (0.12–0.16 in) wide, with a rounded or flattened operculum. Flowering occurs from September to January and the flowers are white. The fruit is a woody barrel-shaped or conical capsule, 6–11 mm (0.24–0.43 in) long and 6–9 mm (0.24–0.35 in) wide, with the valves near rim level. [2] [3] [4] [5]
Eucalyptus sieberi was first formally described in 1962 by Lawrie Johnson in Contributions from the New South Wales Herbarium, from specimens collected by Joseph Maiden in Blackheath in 1899. [6] The specific epithet (sieberi) honours the Czech botanist Franz Sieber. [3]
Silvertop ash grows in forest and woodland, often in pure stands, on shallow soils of low to medium fertility. It is found in south-eastern Queensland, through the western slopes and plains of New South Wales, the eastern side of the Great Dividing Range in Victoria, and north-eastern Tasmania. [2] [3] [4] [5] [7]
The timber is used in general construction, flooring, decking, handles and woodchipping. It is one of the major species being converted into export wood chips at Eden for writing paper production. [8] [9]
Eucalyptus delegatensis, commonly known as alpine ash, gum-topped stringybark, white-top and in Victoria as woollybutt, is a species of tree that is endemic to southeastern Australia. It has a straight trunk with rough, fibrous to stringy bark on the lower half of the trunk, smooth white bark above, lance-shaped to curved adult leaves, flower buds in groups of between seven and fifteen, white flowers and barrel-shaped or hemispherical fruit.
Eucalyptus microcorys, commonly known as tallowwood, is a species of medium to tall tree that is endemic to eastern Australia. It has rough, fibrous or string bark on the trunk and branches, lance-shaped to egg-shaped adult leaves, flower buds in groups of seven or nine, white to lemon-yellow flowers and conical fruit. It grows in forests near the coast of Queensland and New South Wales.
Eucalyptus dives, commonly known as the broad-leaved peppermint or blue peppermint, is a species of tree that is endemic to south-eastern Australia. It has rough, finely fibrous bark on the trunk and larger branches, smooth bark above, lance-shaped or curved adult leaves, flower buds in groups of eleven or more, white flowers and cup-shaped, hemispherical or conical fruit.
Eucalyptus radiata, commonly known as the narrow-leaved peppermint or Forth River peppermint, is a species of tree that is endemic to south-eastern Australia. It has rough, fibrous to flaky bark on the trunk and larger branches, smooth grey bark on the thinner branches, lance-shaped to curved or almost linear leaves, flower buds in groups of eleven to twenty or more, white flowers and cup-shaped, hemispherical or shortened spherical fruit.
Eucalyptus elata, commonly known as the river peppermint or river white gum, is a species of medium to tall tree that is endemic to eastern Australia. It has rough, compacted bark on the lower trunk, smooth bark above, lance-shaped to curved adult leaves, green to yellow flower buds arranged in groups of eleven to thirty or more, white flowers and hemispherical or shortened spherical fruit.
Eucalyptus smithii, commonly known as the gully gum, gully peppermint, blackbutt peppermint, or ironbark peppermint, is a species of medium-sized to tall tree, sometimes a mallee, that is endemic to southeastern Australia. It has rough, compact bark on the trunk, smooth ribbony bark above, narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit.
Eucalyptus stenostoma, commonly known as the Jillaga ash, is a small to medium-sized tree in that is endemic to a restricted part of New South Wales. It has rough, fissured bark on the lower trunk, smooth creamy white bark above, lance-shaped adult leaves, flower buds in groups of thirteen to nineteen or more, white flowers and spherical fruit with a small opening.
Eucalyptus notabilis, commonly known as Blue Mountains mahogany or mountain mahogany, is a species of small to medium-sized tree endemic to eastern Australia. It has rough, fibrous bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and hemispherical or conical fruit.
Eucalyptus oreades, commonly known as the Blue Mountains ash, white ash or smooth-barked mountain ash, is a species of medium-sized to tall tree that is native to eastern Australia. It has smooth, powdery whitish bark with rough bark near the base, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to cylindrical fruit.
Eucalyptus fraxinoides, commonly known as the white ash or white mountain ash, is a medium-sized to tall tree of mountain country and is endemic to south eastern Australia. It has rough, compacted greyish bark on the lower trunk, smooth white bark with scribbles above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and barrel-shaped or urn-shaped fruit.
Eucalyptus fastigata, commonly known as brown barrel or cut-tail, is a species of medium-sized to tall tree that is endemic to southeastern Australia. It has fibrous or stringy bark on the trunk and larger branches, smooth bark above, lance-shaped to curved adult leaves, flower buds in groups of eleven or more, white flowers and conical or pair-shaped fruit.
Eucalyptus campanulata, commonly known as the New England blackbutt, gum-topped peppermint or New England ash, is a tree that is endemic to eastern Australia. It has rough, finely fibrous greyish bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds arranged in groups of between eleven and fifteen, white flowers and cup-shaped to conical fruit.
Eucalyptus quadrangulata, commonly known as the white-topped box or coast white box, is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical fruit.
Eucalyptus conica, commonly known as fuzzy box, is a species of tree endemic to eastern Australia. It has rough, flaky bark on the trunk and larger branches, smooth above, lance-shaped adult leaves, oval to diamond-shaped flower buds mostly arranged on a branching inflorescence on the ends of the branchlets, white flowers and conical fruit.
Eucalyptus dendromorpha, the Budawang ash or giant mallee ash is a species of tree endemic to southeastern Australia. It has rough, compacted bark on the lower part of the trunk, smooth white to cream-coloured bark above, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped or barrel-shaped fruit.
Eucalyptus brookeriana, commonly known as Brooker's gum, is a tree species that is endemic to south-eastern Australia. It has rough, fibrous bark on the lower part of its trunk, smooth bark higher up, lance-shaped, egg-shaped or curved adult leaves, flower buds usually arranged in groups of seven, white flowers and cup-shaped, conical or bell-shaped fruit.
Eucalyptus planchoniana, commonly known as the needlebark stringybark or bastard tallowwood is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, stringy bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, cylindrical or barrel-shaped fruit.
Eucalyptus ignorabilis is a species of small to medium-sized tree that is endemic to southeastern Australia. It has rough, fibrous bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to hemispherical fruit. It is found in far southeastern New South Wales and eastern Victoria.
Eucalyptus rummeryi, commonly known as steel box, Rummery's box or brown box, is a species of medium-sized to tall tree that is endemic to northern New South Wales. It has rough bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of three or seven on the ends of branchlets, white flowers and conical, hemispherical or cup-shaped fruit.
Eucalyptus sabulosa, commonly known as Wimmera scentbark, is a species of small, spreading tree that is endemic to Victoria, Australia. It has fibrous or scaly bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and oval to almost spherical fruit.