''Eucalyptus paniculata'', commonly known as grey ironbark, is a species of tree that is

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 New South Wales. It has dark-coloured, deeply furrowed

ironbark Ironbark is a common name of a number of species in three taxonomic groups within the genus ''Eucalyptus'' that have dark, deeply furrowed bark. Instead of being shed annually as in many of the other species of ''Eucalyptus'', the dead bark accum ...

on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven on a branched peduncle, white flowers and conical, hemispherical or cup-shaped fruit.

Description

''Eucalyptus paniculata'' 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 grey to black or brownish, deeply furrowed ironbark on the trunk and branches. 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 egg-shaped to lance-shaped leaves that are a lighter shade of green on the lower side, long and wide. Adult leaves are glossy green, a lighter shade on the lower side, lance-shaped to curved, long and wide, tapering to 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 ...

long. The flower buds are mostly arranged in groups of seven on a branched peduncle long, the individual buds on

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branch ...

long. Mature buds are oval to diamond-shaped, long and wide with a conical operculum, the floral cup more or less square in cross-section. Flowering occurs in most months and the flowers are white. The fruit is a woody, conical, hemispherical or cup-shaped capsule long and wide with the valves close to rim level.

Taxonomy and naming

''Eucalyptus paniculata'' was first formally described in 1797 by James Edward Smith in ''

Transactions of the Linnean Society of London The Linnean Society of London is a learned society dedicated to the study and dissemination of information concerning natural history, evolution, and taxonomy. It possesses several important biological specimen, manuscript and literature collec ...

'' from material collected by David Burton at

Port Jackson Port Jackson, commonly known as Sydney Harbour, is a natural harbour on the east coast of Australia, around which Sydney was built. It consists of the waters of Sydney Harbour, Middle Harbour, North Harbour and the Lane Cove and Parramatta ...

. Smith obtained the specimens from the herbarium of

Joseph Banks Sir Joseph Banks, 1st Baronet, (19 June 1820) was an English Natural history, naturalist, botanist, and patron of the natural sciences. Banks made his name on the European and American voyages of scientific exploration, 1766 natural-history ...

. 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 ...

(''paniculata'') is from the

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 ''paniculatus'' meaning

paniculate In botany, a panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a pa ...

, referring to the arrangement of the flowers.

Distribution and habitat

Grey ironbark grows in high rainfall coastal areas from Bermagui to

Bulahdelah Bulahdelah () is a town and locality in the Mid North Coast region of New South Wales, Australia in the Mid-Coast Council local government area. Geography The town is situated north of Sydney along the eastern and northern banks of the Myall ...

. Previously a common tree in the inner western suburbs of

Sydney Sydney is the capital city of the States and territories of Australia, state of New South Wales and the List of cities in Australia by population, most populous city in Australia. Located on Australia's east coast, the metropolis surrounds Syd ...

. A remnant ironbark still grows in the inner city suburb of

Glebe A glebe (, also known as church furlong, rectory manor or parson's close(s)) is an area of land within an ecclesiastical parish used to support a parish priest. The land may be owned by the church, or its profits may be reserved to the church. ...

at St. Johns church.

Uses

A very dense timber, being 1120 kilograms per cubic metre. Heart wood is red-brown or dark brown. The timber has various uses, including railway sleepers, heavy engineering, construction, poles and cross-arms. Timber is difficult to plane and nail. It is slow in drying, requiring careful handling to avoid surface checking. Annual wood production potential is 9 to 18 cubic metres per hectare. The timber is not susceptible to the

lyctus Lyktos ( Greek: or ) was a city in ancient Crete. During the Classical and Roman periods, it was one of the major settlements on the island. Its ruins are located near the modern-day village of Lyttos in the municipality of Minoa Pediada, ...

borer.

Gallery

Eucalyptus paniculata Glebe.JPG, Eucalyptus paniculata01.jpg, Eucalyptus paniculata02.jpg, Eucalyptus paniculata Keira.JPG, Eucalyptus paniculata00.jpg,

References

{{Taxonbar, from=Q3335799 paniculata Myrtales of Australia Flora of New South Wales Plants described in 1797 Taxa named by James Edward Smith