''Eucalyptus canaliculata'', commonly known as grey gum, is a tree

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to a small area in

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

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. Eucalyptus canaliculata flowers

Description

''Eucalyptus canaliculata'' is a tree that typically grows to a height of and forms a

lignotuber A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a respons ...

. It has smooth, mainly grey bark with patched of brown or pink and becomes granular with age. Young plants and

coppice Coppicing is the traditional method in woodland management of cutting down a tree to a tree stump, stump, which in many species encourages new Shoot (botany), shoots to grow from the stump or roots, thus ultimately regrowing the tree. A forest ...

regrowth have lance-shaped to egg-shaped leaves long, wide, different shades of green on either side, and that always have a

petiole Petiole may refer to: *Petiole (botany), the stalk of a leaf, attaching the blade to the stem *Petiole (insect anatomy) In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and ...

. Adult leaves are a darker green on the upper surface, lance-shaped to curved, long, wide on a petiole long. The flower buds are arranged in groups of seven on a flattened peduncle long, the individual buds on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. Mature buds are oval to diamond-shaped, long and 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, long, wide and larger than other grey gums. The valves of the fruit extend well beyond the rim.

Taxonomy and naming

''Eucalyptus canaliculata'' was first formally described in 1921 by

Joseph Maiden Joseph Henry Maiden (25 April 1859 – 16 November 1925) was a botanist who made a major contribution to knowledge of the Australian flora, especially the genus ''Eucalyptus''. This botanist is denoted by the author abbreviation when citing ...

from a specimen near

Dungog Dungog is a country town on the Williams River in the Hunter region and a small part of the Mid North Coast region of New South Wales, Australia. Located in the middle of dairy and timber country, it is the centre of the Dungog Shire Local Go ...

and the description was published in the '' Journal and Proceedings of the Royal Society of New South Wales''. The

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

(''canaliculatum'') is a

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

word meaning "grooved",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). but the reason Maiden used this name is obscure.

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 Gloucester ( ) is a cathedral city, non-metropolitan district and the county town of Gloucestershire in the South West England, South West of England. Gloucester lies on the River Severn, between the Cotswolds to the east and the Forest of Dean ...

and

Barrington Tops Barrington Tops is part of the Great Dividing Range in New South Wales, Australia, between Gloucester and Scone. In 1934, the area was difficult to access and was described as being "not traceable to any man-made feature". Part of the area has ...

References

{{Taxonbar, from=Q15397348 canaliculata Myrtales of Australia Flora of New South Wales Trees of Australia Plants described in 1921 Taxa named by Joseph Maiden