''Eucalyptus paedoglauca'', commonly known as the Mount Stuart ironbark, is a small to medium-sized 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 a small area in Queensland. It has rough, dark

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 accu ...

, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit. It is only known from a few hills near

Townsville Townsville is a city on the north-eastern coast of Queensland, Australia. With a population of 180,820 as of June 2018, it is the largest settlement in North Queensland; it is unofficially considered its capital. Estimated resident population, 3 ...

Description

''Eucalyptus paedoglauca'' 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 ...

. It has rough dark grey to black ironbark to the thinnest 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

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 ...

, broadly lance-shaped to egg-shaped or sickle-shaped leaves that are long and wide. Adult leaves are the same shade of usually dull green on both sides, lance-shaped, long and wide, tapering to a petiole long. The flower buds are arranged on the ends of branchlets on a branched peduncle in groups of seven, the peduncle long, the individual buds on

pedicels 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 ...

long. Mature buds are oval, about long and wide with a conical to rounded operculum. Flowering occurs from April to May and the flowers are white. The fruit is a woody, cup-shaped capsule long and wide with the valves near rim level.

Taxonomy

''Eucalyptus paedoglauca'' was first formally described in 1991 by

Lawrie Johnson Lawrence Alexander Sidney Johnson Fellow of the Australian Academy of Science, FAA, (26 June 1925 – 1 August 1997) known as Lawrie Johnson, was an Australian Taxonomy (biology), taxonomic botany, botanist. He worked at the Royal Botanic Garden ...

and

Donald Blaxell Donald Frederick Blaxell (born 1 February 1934, Sydney, New South Wales), is an Australian botanist, botanical collector and taxonomist. Blaxell worked at the University of New South Wales for 11 years and joined the New south Wales Herbarium in ...

from material collected on

Mount Stuart Mount Stuart is a mountain in the Cascade Range, in the U.S. state of Washington. It is the second highest non-volcanic peak in the state, after Bonanza Peak and seventh-highest overall. Mount Stuart is the highest peak in the Stuart Range, and ...

, near Townsville. The description was published in the journal '' Telopea'' in a paper by Ken Hill and Johnson. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''paedoglauca'') is from

ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

, meaning "child" or "youth" and "pale blue or grey", referring to the glaucous juvenile leaves.

Distribution and habitat

Mount Stuart ironbark grows in remnant vegetation on Mount Stuart and a few other hills near Townsville.

Conservation status

This eucalypt is listed as "vulnerable" under the Australian Government ''

Environment Protection and Biodiversity Conservation Act 1999 The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and cultu ...

'' and by the Queensland Government ''

Nature Conservation Act 1992 The ''Nature Conservation Act 1992'' is an act of the Parliament of Queensland, Australia, that, together with subordinate legislation, provides for the legislative protection of Queensland's threatened biota. As originally published, it prov ...

''. The main threats to the species are road maintenance and inappropriate fire regimes.

References

{{Taxonbar, from=Q15461443 Trees of Australia paedoglauca Myrtales of Australia Flora of Queensland Plants described in 1991 Taxa named by Lawrence Alexander Sidney Johnson

Description

Taxonomy

Distribution and habitat

Conservation status

See also

References