Eucalyptus canaliculata

Grey gum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Myrtales
Family:	Myrtaceae
Genus:	Eucalyptus
Species:	E. canaliculata
Binomial name
	Eucalyptus canaliculata; Maiden [1]
Synonyms [1]
	Eucalyptus punctata var. grandifloraH.Deane & Maiden; Eucalyptus punctata var. majorR.T.Baker & H.G.Sm.;

Last updated June 04, 2020

Eucalyptus canaliculata, commonly known as grey gum,^[2] is a tree endemic to a small area in New South Wales in eastern Australia. It has smooth, mostly grey bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical or hemispherical fruit.

Description

Eucalyptus canaliculata is a tree that typically grows to a height of 30 metres (98 ft) and forms a lignotuber. It has smooth, mainly grey bark with patched of brown or pink and becomes granular with age. Young plants and coppice regrowth have lance-shaped to egg-shaped leaves 60–180 mm (2–7 in) long, 20–50 mm (0.8–2 in) wide, different shades of green on either side, and that always have a petiole. Adult leaves are a darker green on the upper surface, lance-shaped to curved, 80–170 mm (3–7 in) long, 15–50 mm (0.6–2 in) wide on a petiole 15–30 mm (0.6–1 in) long. The flower buds are arranged in groups of seven on a flattened peduncle 13–20 mm (0.5–0.8 in) long, the individual buds on a pedicel 5–8 mm (0.2–0.3 in) long. Mature buds are oval to diamond-shaped, 8–11 mm (0.31–0.43 in) long and 6–7 mm (0.24–0.28 in) wide with a conical to rounded operculum that is narrower than the floral cup. Flowering has been observed in February and the flowers are white. The fruit is a woody, conical or hemispherical capsule, 6–10 mm (0.24–0.39 in) long, 10–15 mm (0.39–0.59 in) wide and larger than other grey gums. The valves of the fruit extend well beyond the rim.^[2]^[3]^[4]

Taxonomy and naming

Eucalyptus canaliculata was first formally described in 1921 by Joseph Maiden from a specimen near Dungog and the description was published in the Journal and Proceedings of the Royal Society of New South Wales .^[5]^[6] The specific epithet (canaliculatum) is a Latin word meaning "grooved",^[7] but the reason Maiden used this name is obscure.^[2]

Distribution and habitat

Grey gum usually grows open forest in sites of medium to low fertility such as on dry ridge tops. It occurs in the foothills of coastal ranges near Dungog, Gloucester and Barrington Tops.^[2]^[3]^[4]

Related Research Articles

Eucalyptus pauciflora, commonly known as snow gum, cabbage gum or white sally, is a species of tree or mallee that is native to eastern Australia. It has smooth bark, lance-shaped to elliptical leaves, flower buds in clusters of between seven and fifteen, white flowers and cup-shaped, conical or hemispherical fruit. It is widespread and locally common in woodland in cold sites above 700 m (2,300 ft) altitude.

Eucalyptus punctata, commonly known as grey gum, is a small to medium-sized tree that is endemic to eastern Australia. It has smooth grey bark that is shed in patches, lance-shaped, curved or egg-shaped adult leaves flower buds in groups of seven, white flowers and hemispherical or cup-shaped fruit. Its leaves are one of the favoured foods of the koala.

Eucalyptus cypellocarpa, commonly known as mountain grey gum, mountain gum, monkey gum or spotted mountain grey gum, is a species of straight, smooth-barked forest tree that is endemic to southeastern Australia. It has relatively large, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and usually cylindrical or barrel-shaped fruit.

Eucalyptus scoparia, commonly known as the Wallangarra white gum or willow gum, is a small to medium-sized tree that is endemic to a small area of eastern Australia. It has smooth bark, linear to lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, hemispherical or bell-shaped fruit. It is restricted to a few rocky mountains near the border between New South Wales and Queensland but is widely cultivated.

Eucalyptus gregsoniana, commonly known as the Wolgan snow gum or mallee snow gum, is a species of mallee that is endemic to New South Wales. It has white to pale grey bark, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped, hemispherical or conical fruit.

Eucalyptus camphora, commonly known as swamp gum is a flowering plant that is endemic to south-eastern Australia. It is a species of small to medium-sized tree with smooth bark, sometimes rough at the base, broadly lance-shaped to egg-shaped or elliptic adult leaves, flower buds in groups of seven, white flowers and conical fruit. There are two subspecies, subspecies camphora, commonly known as broad-leaved sally or swamp gum and subspecies humeana, commonly known as mountain swamp gum.

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 blakelyi, known as Blakely's red gum, is a tree endemic to eastern Australia. It has smooth bark on its trunk and branches, dull bluish green, lance-shaped adult leaves, flower buds usually in groups of seven, white flowers and cup-shaped to hemispherical fruit.

Eucalyptus racemosa, commonly known as snappy gum or narrow-leaved scribbly gum, 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 amplifolia, commonly known as the cabbage gum, is a tree that is endemic to eastern Australia. It has smooth bark on its trunk and branches, lance-shaped leaves, and buds in groups of between seven and fifteen or more. The flowers are white and the fruit are woody hemispherical capsules. It is common on the coastal areas and tablelands of New South Wales and adjacent areas in south eastern Queensland, occurring as far south as Bega.

Eucalyptus mannifera, commonly known as the brittle gum or red spotted gum, is a species of small to medium-sized tree that is endemic to south-eastern Australia. It has smooth, powdery white bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, hemispherical or conical fruit.

Eucalyptus dunnii, commonly known as Dunn's white gum or simply white gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has rough bark near the base, smooth white to cream-coloured bark above, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, conical or hemispherical fruit.

Eucalyptus dwyeri, commonly known as Dwyer's red gum or Dwyer's mallee gum, is a species of small tree, sometimes a mallee that is endemic to eastern Australia. It has smooth, white or cream-coloured bark, lance-shaped to curved adult leaves, flower buds in groups of seven and conical, bell-shaped or hemispherical fruit.

Eucalyptus glaucina, commonly known as the slaty red gum, is a species of small to medium-sized tree endemic to New South Wales. It has smooth, white and grey bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit with the valves protruding well above the level of the rim.

Eucalyptus major, commonly known as grey gum, is a species of tree that is endemic to a small area near the New South Wales - Queensland border. It has smooth greyish bark, lance-shaped adult leaves, flower buds in groups of seven and conical to cup-shaped fruit.

Eucalyptus herbertiana, commonly known as Kalumburu gum or yellow-barked mallee, is a species of small tree or mallee that is endemic to northern Australia. It has smooth bark, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, hemispherical or conical fruit.

Eucalyptus houseana, commonly known as Kimberley white gum, or is a species of medium-sized tree that is endemic to the Kimberley region of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and conical to hemispherical fruit.

Eucalyptus pauciflora subsp. debeuzevillei, commonly known as Jounama snow gum, is a mallee or small tree that is native to a few mountain peaks in south-eastern Australia. It has smooth, shiny bark, glossy green lance-shaped to egg-shaped leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having angular flower buds.

Eucalyptus pauciflora subsp. niphophila, commonly known as snow gum, is a small tree or large shrub that is native to a few mountain peaks in eastern Australia. It has smooth bark, glossy green, lance-shaped to egg-shaped or elliptical leaves, flower buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having more delicate, pedicellate flower buds and smaller leaves.

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.

References

1 2 "Eucalyptus canaliculata". Australian Plant Census. Retrieved 11 April 2019.
1 2 3 4 "Eucalyptus canaliculata Grey gum". Euclid: Centre for Australian National Biodiversity Research. Retrieved 11 April 2019.
1 2 Hill, Ken. "Eucalyptus canaliculata". Royal Botanic Garden Sydney. Retrieved 11 April 2019.
1 2 Chippendale, George M. "Eucalyptus canaliculata". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 11 April 2019.
↑ "Eucalyptus canaliculata". APNI. Retrieved 11 April 2019.
↑ Maiden, Joseph (1921). "Notes on Eucalyptus". Journal and Proceedings of the Royal Society of New South Wales. 54: 171–175. Retrieved 11 April 2019.
↑ Backer, C.A. (1936). Verklarend woordenboek der wetenschappelijke namen van de in Nederland en Nederlandsch-Indië in het wild groeiende en in tuinen en parken gekweekte varens en hoogere planten (Edition Nicoline van der Sijs).

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[APC-1] 1 2 "Eucalyptus canaliculata". Australian Plant Census. Retrieved 11 April 2019.

[CANBR-2] 1 2 3 4 "Eucalyptus canaliculata Grey gum". Euclid: Centre for Australian National Biodiversity Research. Retrieved 11 April 2019.

[RBGS-3] 1 2 Hill, Ken. "Eucalyptus canaliculata". Royal Botanic Garden Sydney. Retrieved 11 April 2019.

[ABRS-4] 1 2 Chippendale, George M. "Eucalyptus canaliculata". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 11 April 2019.

[APNI-5] "Eucalyptus canaliculata". APNI. Retrieved 11 April 2019.

[Maiden-6] Maiden, Joseph (1921). "Notes on Eucalyptus". Journal and Proceedings of the Royal Society of New South Wales. 54: 171–175. Retrieved 11 April 2019.

[Backer-7] Backer, C.A. (1936). Verklarend woordenboek der wetenschappelijke namen van de in Nederland en Nederlandsch-Indië in het wild groeiende en in tuinen en parken gekweekte varens en hoogere planten (Edition Nicoline van der Sijs).