Youman's stringybark | |
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Eucalyptus youmanii near Uralla | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Myrtaceae |
Genus: | Eucalyptus |
Species: | E. youmanii |
Binomial name | |
Eucalyptus youmanii | |
Synonyms [1] | |
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Eucalyptus youmanii, commonly known as Youman's stringybark, [2] is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, stringy bark on the trunk and branches, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.
Eucalyptus youmanii is a tree that typically grows to a height of 20 m (66 ft) and forms a lignotuber. It has rough, stringy, greyish, furrowed bark on the trunk and branches. Young plants and coppice regrowth have leaves that are paler on the lower surface, egg-shaped to lance-shaped, 50–110 mm (2.0–4.3 in) long and 15–40 mm (0.59–1.57 in) wide. Adult leaves are slightly paler on the lower surface, lance-shaped to curved, 55–160 mm (2.2–6.3 in) long and 12–32 mm (0.47–1.26 in) wide on a petiole 7–20 mm (0.28–0.79 in) long. The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle 5–23 mm (0.20–0.91 in) long, the individual buds sessile or on pedicels up to 6 mm (0.24 in) long. Mature buds are oval, spindle-shaped or diamond-shaped, 7–9 mm (0.28–0.35 in) long and 4–5 mm (0.16–0.20 in) wide with a conical operculum. Flowering occurs in February and March and the flowers are white. The fruit is a woody hemispherical capsule 4–8 mm (0.16–0.31 in) long and 7–13 mm (0.28–0.51 in) wide with the valves protruding. [2] [3] [4]
Eucalyptus youmanii was first formally described in 1930 by William Blakely and Ernest McKie in Proceedings of the Linnean Society of New South Wales from material collected near Guyra in 1920. [5] [6] The specific epithet (youmanii) honours Thomas Youman (1874–1962), who, with Blakely and McKie, collected the type specimens on his farm. [3] [7]
Youman's stringybark grows in woodland on poor soils from the Armidale-Guyra area in New South Wales to near Stanthorpe in Queensland. [2] [3]
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 globoidea, commonly known as the white stringybark, is a tree that is endemic to near-coastal areas of south-eastern Australia. It has rough, stringy bark, often furrowed on the trunk, glossy, lance-shaped to egg-shaped, often curved leaves, oval to spindle-shaped green to yellowish flower buds, white flowers and small, more or less spherical to hemispherical fruit.
Eucalyptus capitellata, commonly known as brown stringybark, is a species of tree that is endemic to New South Wales. It is a small to medium-sized tree with rough, stringy bark from the trunk to the thinnest branches, lance-shaped to curved adult leaves, spindle-shaped or oblong flower buds in groups of seven or more, white flowers and clusters of flattened hemispherical fruit.
Eucalyptus baxteri, commonly known as brown stringybark, is a medium-sized tree that is endemic the south-east of Australia. It has rough, stringy bark to the thinnest branches, lance-shaped or curved adult leaves, green to yellow flower buds is groups of between nine and fifteen and cup-shaped or hemispherical fruit.
Eucalyptus caliginosa, commonly known as broad-leaved stringybark or New England stringybark, is a tree that is endemic to eastern Australia. It has stringy bark, lance-shaped or curved adult leaves, flower buds in groups of seven or nine, white flowers and more or less hemispherical fruit. It is common on the Northern Tablelands and North West Slopes of New South Wales and adjacent areas of Queensland.
Eucalyptus laevopinea, commonly known as the silver top stringybark, is a tree that is endemic to eastern Australia. It has rough, stringy greyish bark on the trunk and larger branches, glossy green, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and hemispherical or shortened spherical fruit.
Eucalyptus tindaliae, commonly known as Tindal's stringybark, is a species of tree that is endemic to coastal eastern Australia. It has rough, stringy bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit.
Eucalyptus blaxlandii, commonly known as Blaxland's stringybark, is a tree that is endemic to south eastern New South Wales. It is a stringybark with lance-shaped adult leaves, flower buds arranged in group of nine or eleven, white flowers and hemispherical fruit.
Eucalyptus ligustrina, commonly known as the privet-leaved stringybark, is a species of shrub, mallee or small tree that is endemic to New South Wales. It has rough, stringy bark, lance-shaped to egg-shaped adult leaves, flower buds in groups of between seven and fifteen, white flowers and hemispherical or shortened spherical fruit.
Eucalyptus eugenioides, commonly known as the thin-leaved stringybark or white stringybark, is a species of tree endemic to eastern Australia. It is a small to medium-sized tree with rough stringy bark, lance-shaped to curved adult leaves, Flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit.
Eucalyptus tenella, commonly known as narrow-leaved stringybark, is a species of small to medium-sized tree that is endemic to New South Wales. It has stringy bark, narrow lance-shaped to linear leaves, flower buds in group of seven to fifteen, white flowers and hemispherical fruit.
Eucalyptus serraensis, commonly known as the Grampians stringybark, is a species of small tree or mallee that is endemic to the Grampians in Victoria, Australia. It has rough, stringy, fibrous or flaky bark on the trunk and sometimes also the branches, smooth bark above, lance-shaped to egg-shaped or round adult leaves, sessile flower buds in groups of three or seven, white flowers and hemispherical or cup-shaped fruit.
Eucalyptus cameronii, commonly known as the diehard stringybark is a flowering plant that is endemic to eastern Australia. It is a small to medium-sized tree with rough, stringy bark from the trunk to the small branches, lance-shaped to curved adult leaves, flowers buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or more or less spherical fruit. It mainly grows on the eastern side of the Northern Tablelands in New South Wales.
Eucalyptus bensonii, commonly known as Benson's stringybark, is a small tree or mallee that is endemic to New South Wales. It has rough grey or brown stringy bark on the trunk and larger branches, smooth bark on the thinnest branches, broadly lance-shaped to egg-shaped adult leaves, flower buds arranged in groups of seven, nine or eleven, white flowers and cup-shaped or hemispherical fruit in clusters.
Eucalyptus mckieana, commonly known as McKie's stringybark, is a species of tree that is endemic to New South Wales. It has rough, stringy bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped, barrel-shaped or hemispherical fruit.
Eucalyptus tetrodonta, commonly known as Darwin stringybark or messmate, is a species of medium-sized to tall tree that is endemic to northern Australia. It has rough, stringy or fibrous bark on the trunk and branches, lance-shaped leaves arranged in opposite pairs, flowers buds in groups of three, whitish to cream-coloured flowers and cylindrical fruit.
Eucalyptus arenacea, commonly known as the desert stringybark or sand stringybark, is a tree or a mallee that is endemic to south-eastern Australia. It has rough bark to the thinnest branches, lance-shaped or curved adult leaves, club-shaped flower buds arranged in groups of between seven and fifteen, white flowers and hemispherical to more or less spherical fruit.
Eucalyptus imitans, commonly known as the Illawarra stringybark, is a species of small tree that is endemic to New South Wales. It has rough, stringy, greyish bark on the trunk and larger branches, lance-shaped, elliptic to egg-shaped or curved adult leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit. It is found on near-coastal tablelands inland from the south coast.
Eucalyptus mackintii, commonly known as the blue-crowned stringybark, is a species of medium-sized tree that is endemic to Victoria. It has rough, stringy bark on the trunk and branches, lance-shaped to curved adult leaves, flowers buds in groups of between seven and eleven, white flowers and cup-shaped or hemispherical fruit.
Eucalyptus sphaerocarpa, commonly known as the Blackdown stringybark, is a species of tall forest tree that is endemic to Queensland. It has rough, stringy bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, nine or eleven, white flowers and shortened spherical fruit.