Snappy gum | |
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Eucalyptus racemosa near the Nowra-Braidwood road | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Myrtaceae |
Genus: | Eucalyptus |
Species: | E. racemosa |
Binomial name | |
Eucalyptus racemosa | |
Synonyms [2] | |
Synonyms
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Eucalyptus racemosa, commonly known as snappy gum or narrow-leaved scribbly gum, [3] is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved or egg-shaped adult leaves, flower buds in groups of between seven and fifteen, white flowers and cup-shaped, conical or hemispherical fruit.
Eucalyptus racemosa is a tree that typically grows to a height of 15–20 m (49–66 ft), rarely a mallee, and forms a lignotuber. It has smooth, mottled white, yellow, grey or cream-coloured bark with insect scribbles. Young plants and coppice regrowth have dull green, egg-shaped leaves that are 50–170 mm (2.0–6.7 in) long, 25–85 mm (0.98–3.35 in) wide and petiolate. Adult leaves are the same shade of glossy green on both sides, lance-shaped to curved or egg-shaped, 65–200 mm (2.6–7.9 in) long and 10–35 mm (0.39–1.38 in) wide on a petiole 10–25 mm (0.39–0.98 in) long. The flower buds are usually arranged in leaf axils in groups of between seven and fifteen on an unbranched peduncle 5–25 mm (0.20–0.98 in) long, the individual buds on pedicels 3–6 mm (0.12–0.24 in) long. Mature buds are oval, 3–5 mm (0.12–0.20 in) long and 2–3 mm (0.079–0.118 in) wide with a rounded or conical operculum. Flowering mainly occurs from July to September and the flowers are white. The fruit is a woody, cup-shaped, conical or hemispherical capsule 3–6 mm (0.12–0.24 in) long and 4–7 mm (0.16–0.28 in) wide with the valves near rim level. [3] [4] [5]
Eucalyptus racemosa was first formally described in 1797 by the botanist Antonio José Cavanilles in his book Icones et Descriptiones Plantarum . [6] [7] The specific epithet (racemosa) is a Latin word meaning "having racemes", which is a misnomer, as it does not have flowers in racemes. [8]
Snappy gum grows in woodland and forest, sometimes in pure stands, on poor sandstone soils in mid to high rainfall areas. It is found along the coast, tablelands and western slopes from Bombala, Bathurst and Albury in New South Wales to Gympie and Bundaberg in south-eastern Queensland. [3] [4] [9]
The distinctive scribbles often found on the bark of this eucalypt are caused by the scribbly gum moth, Ogmograptis racmosa . [10]
Eucalyptus haemastoma, commonly known as scribbly gum, is a species of tree that is endemic to the Sydney region. It has white or silvery grey bark, lance-shaped or curved adult leaves, flower buds in groups of between nine and fifteen, white flowers and conical or hemispherical fruit. It is one of three eucalypts with prominent insect scribbles in the bark.
Eucalyptus saligna, commonly known as the Sydney blue gum or blue gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has rough, flaky bark near the base of the trunk, smooth bark above, lance-shaped to curved adult leaves, flower buds in groups of seven, nine or eleven, white flowers and cylindrical to conical or cup-shaped fruit.
Eucalyptus ovata, commonly known as swamp gum or black gum, is a small to medium-sized tree species that is endemic to south-eastern Australia. It has mostly smooth bark, glossy green, lance-shaped to egg-shaped adult leaves, green flower buds in groups of seven, white flowers and conical to bell-shaped fruit.
Eucalyptus pulverulenta, commonly known as silver-leaved mountain gum, is a species of straggly tree or mallee that is endemic to southern New South Wales. It has smooth bark, egg-shaped, heart-shaped or round, sessile leaves arranged in opposite pairs, flower buds in groups of three, white flowers and cup-shaped to cylindrical fruit.
Corymbia maculata, commonly known as spotted gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved adult leaves, flower buds usually in groups of three, white flowers and urn-shaped or barrel-shaped fruit.
Corymbia gummifera, commonly known as red bloodwood, is a species of tree, rarely a mallee, that is endemic to eastern Australia. It has rough, tessellated bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped fruit.
Eucalyptus rossii, commonly known as inland scribbly gum or white gum, is a species of small to medium-sized tree that is endemic to New South Wales and the Australian Capital Territory. It has smooth bark with insect scribbles, lance-shaped adult leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical or shortened spherical 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 propinqua, commonly known as the grey gum or small-fruited grey gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved adult leaves that are paler on the lower surface, flower buds in groups of between seven and fifteen, white flowers and conical or hemispherical fruit.
Eucalyptus parramattensis, commonly known as the Parramatta red gum or drooping red gum, is a species of small to medium-sized tree that is endemic to eastern New South Wales. It has smooth, mottled bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.
Eucalyptus parvula, commonly known as small-leaved gum, is a species of small tree that is endemic to south-eastern New South Wales. It has mostly smooth bark, elliptical to lance-shaped adult leaves but with many juvenile of intermediate leaves in the crown, flower buds in groups of seven, white flowers and cup-shaped fruit.
Corymbia henryi, commonly known as the large-leaved spotted gum, is a species of small to medium-sized tree that is endemic to north-eastern Australia. It has smooth, mottled bark, lance-shaped adult leaves, flower buds in groups of three, white or lemon yellow flowers and barrel-shaped to urn-shaped fruit.
Eucalyptus aquatica, commonly known as broad-leaved sally, or mountain swamp gum is a tree or mallee that is endemic to a small area of New South Wales in eastern Australia. It has smooth, greyish bark, dull bluish green adult leaves, flower buds arranged in groups of seven, white flowers and conical or hemispherical fruit. It grows in swamps and other places with poor drainage.
Eucalyptus prava, commonly known as orange gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped or hemispherical fruit.
Eucalyptus pantoleuca, commonly known as round-leaved gum or Panton River white gum, is a species of small tree that is endemic to the Kimberley region of Western Australia. It has smooth, powdery bark, more or less round adult leaves, flower buds in groups of three, white flowers and conical fruit that are glaucous at first.
Eucalyptus uncinata, commonly known as the hook-leaved mallee, is a species of mallee that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds arranged in groups of nine to thirteen, creamy white flowers and barrel-shaped to oval or cylindrical fruit.
Corymbia aspera, commonly known as the rough-leaved ghost gum, rough leaf range gum, desert bloodwood, Brittle Range gum in Western Australia, or snappy gum in the Northern Territory is a species of tree that is endemic to northern Australia. It has smooth white bark, sometimes with a short stocking of rough bark near the base, a crown of sessile juvenile, heart-shaped or egg-shaped leaves, flower buds in groups of seven, creamy white flowers and cup-shaped, barrel-shaped or cylindrical fruit.
Eucalyptus grisea, commonly known as grey gum, is a species of tree that is endemic to central Queensland. It has smooth greyish bark, lance-shaped to egg-shaped adult leaves, flower buds in groups of seven, white flower and usually cup-shaped fruit.
Eucalyptus platyphylla, commonly known as poplar gum or white gum, is a species of medium-sized tree that is endemic to Queensland. It has smooth. powdery bark, heart-shaped, egg-shaped to almost round leaves, flower buds in groups of seven, white flowers and conical to hemispherical fruit.
Eucalyptus pauciflora subsp. pauciflora, commonly known as snow gum, cabbage gum or white sally is a tree or mallee that is endemic to eastern Australia. It has smooth bark, glossy green, lance-shaped, curved or elliptical leaves, flower buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or conical fruit.