''Eucalyptus racemosa'', commonly known as snappy gum or narrow-leaved scribbly gum, is a species of small to medium-sized 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 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.

Description

''Eucalyptus racemosa'' is a tree that typically grows to a height of , rarely a mallee, 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, mottled white, yellow, grey or cream-coloured bark with insect scribbles. 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 dull green, egg-shaped leaves that are long, wide and petiolate. Adult leaves are the same shade of glossy green on both sides, lance-shaped to curved or egg-shaped, long and wide on a petiole long. The flower buds are usually arranged in leaf

axil A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, fl ...

s in groups of between seven and fifteen on an unbranched 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, long and 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 long and wide with the valves near rim level.

Taxonomy

''Eucalyptus racemosa'' was first formally described in 1797 by the

botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

Antonio José Cavanilles Antonio José Cavanilles (16 January 1745 – 5 May 1804) was a leading Spanish taxonomic botanist, artist and one of the most important figures in the 18th century period of Enlightenment in Spain. Cavanilles is most famous for his 2-vol ...

in his book '' Icones et Descriptiones Plantarum''. 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 ...

(''racemosa'') 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 "having

racemes A raceme () or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the shoo ...

", which is a misnomer, as it does not have flowers in racemes.

Distribution and habitat

Snappy gum grows in woodland and forest, sometimes in pure stands, on poor

sandstone Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sand ...

soils in mid to high rainfall areas. It is found along the coast, tablelands and western slopes from

Bombala Bombala is a town in the Monaro, New South Wales, Monaro region of far southern New South Wales, Australia, in Snowy Monaro Regional Council. It is approximately south-southwest of the state capital, Sydney, and south of the town of Cooma, Ne ...

Bathurst Bathurst may refer to: People * Bathurst (surname) * Bathurst Bellers Mann (1858–1948), Irish-born rugby union player in Wales * Bathurst Peachy (1893–1953), American college head baseball coach Places and jurisdictions Australia * Bat ...

and

Albury Albury (; ) is a major regional city that is located in the Murray River, Murray region of New South Wales, Australia. It is part of the twin city of Albury–Wodonga, Albury-Wodonga and is located on the Hume Highway and the northern side of ...

in New South Wales to

Gympie Gympie ( ) is a city and a Suburbs and localities (Australia), locality in the Gympie Region, Queensland, Australia. Located in the Greater Sunshine Coast, Gympie is about north of the state capital, Brisbane. The city lies on the Mary River ( ...

and

Bundaberg Bundaberg () is the major regional city in the Wide Bay-Burnett region of the state of Queensland, Australia. It is the List of cities in Australia by population, ninth largest city in the state. The Bundaberg central business district is situa ...

in south-eastern Queensland.

Ecology

The distinctive scribbles often found on the bark of this eucalypt are caused by the scribbly gum moth, '' Ogmograptis racmosa''.

Gallery

File:Eucalyptus racemosa - adult leaves and buds.jpg, Adult leaves and buds File:Eucalyptus racemosa - fruit.jpg, Fruit File:Eucalyptus racemosa - trunk bark.jpg, Trunk bark File:Eucalyptus racemosa - bark, buds and leaves.jpg, Bark, buds and leaves

References

{{Taxonbar, from=Q9287149 racemosa Myrtales of Australia Flora of New South Wales Plants described in 1797 Flora of Queensland Taxa named by Antonio José Cavanilles