''Eucalyptus globulus'' subsp. ''maidenii'', commonly known as Maiden's gum, is a subspecies of tree that is

endemic Endemism is the state of a species being found 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 found elsew ...

to southeastern Australia. It has mostly smooth bark with some persistent slabs of old bark at the base, juvenile leaves with one glaucous side, lance-shaped adult leaves, flower buds arranged in groups of seven, white flowers and conical,

pedicellate In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

, sometimes

glaucous ''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), g ...

fruit that is more or less square in cross-section Eucalyptus globulus maidenii buds

Eucalyptus maidenii - Kunming Botanical Garden - DSC02953

Description

''Eucalyptus globulus'' subsp. ''maidenii'' 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 response t ...

. The bark is mostly smooth, shedding in long strips to leave a white or greyish surface. There is sometimes rough, partially shed bark at the base of the trunk and ribbons of shedding bark in the upper branches. Young plants and

coppice Coppicing is a traditional method of woodland management which exploits the capacity of many species of trees to put out new shoots from their stump or roots if cut down. In a coppiced wood, which is called a copse, young tree stems are repeated ...

regrowth have stems that are more or less square in cross-section, with a prominent wing on each corner. The juvenile leaves are

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

, arranged in opposite pairs, elliptic to egg-shaped, the lower surface covered by a white, waxy bloom, long and wide. Adult leaves are arranged alternately, the same shade of green on both sides, lance-shaped to curved, long and wide on a petiole long. The flower buds are arranged in leaf

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

s in groups of seven on a flattened peduncle long, the individual buds on a thickened

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 club-shaped to pear-shaped, long and wide with a beaked or flattened operculum that has a central knob. Flowering has been recorded in March and the flowers are white. The fruit is a woody, conical, sometimes glaucous capsule, long and wide with the valves at about rim level.

Taxonomy and naming

Maiden's gum was first formally described in 1890 by

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Vict ...

who gave it the name ''Eucalyptus maidenii'' and published the description in ''

Proceedings of the Linnean Society of New South Wales The Linnean Society of New South Wales promotes ''the Cultivation and Study of the Science of Natural History in all its Branches'' and was founded in Sydney, New South Wales ( Australia) in 1874 and incorporated in 1884. History The Society suc ...

'' from collections by William Bäuerlen. In 1974,

James Barrie Kirkpatrick James is a common English language surname and given name: *James (name), the typically masculine first name James * James (surname), various people with the last name James James or James City may also refer to: People * King James (disambiguat ...

described four subspecies of ''E. globulus'' and changed the name ''E. maidenii'' to ''E. globulus'' subsp. ''maidenii''. The epithet ''maidenii'' honours

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 ...

Distribution and habitat

This subspecies of ''E. globulus'' grows in forest in mountain valleys, on slopes and ridges in near-coastal ranges of New South Wales south of the

Shoalhaven River The Shoalhaven River is a perennial river that rises from the Southern Tablelands and flows into an open mature wave dominated barrier estuary near Nowra on the South Coast of New South Wales, Australia. Location and features The Shoalhaven ...

and in eastern Victoria near the upper reaches of the

Genoa Genoa ( ; it, Genova ; lij, Zêna ). is the capital of the Italian region of Liguria and the List of cities in Italy, sixth-largest city in Italy. In 2015, 594,733 people lived within the city's administrative limits. As of the 2011 Italian ce ...

and

Cann River The Cann River is a perennial river located in the East Gippsland region of the Australian state of Victoria. Course and features The Cann River rises southwest of Granite Mountain in remote country on the eastern boundary of the Errinundra N ...

References

{{Taxonbar, from1=Q24877901, from2=Q5221066 globulus Myrtales of Australia Trees of Australia Flora of New South Wales Flora of Victoria (Australia) Plants described in 1890 Taxa named by Ferdinand von Mueller