Eucalyptus paedoglauca

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Mount Stuart ironbark
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. paedoglauca
Binomial name
Eucalyptus paedoglauca

Eucalyptus paedoglauca, commonly known as the Mount Stuart ironbark, [2] is a small to medium-sized tree that is endemic to a small area in Queensland. It has rough, dark ironbark, 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.

Contents

Description

Eucalyptus paedoglauca is a tree that typically grows to a height of 10–15 m (33–49 ft) and forms a lignotuber. It has rough dark grey to black ironbark to the thinnest branches. Young plants and coppice regrowth have glaucous, broadly lance-shaped to egg-shaped or sickle-shaped leaves that are 8–15 mm (0.31–0.59 in) long and 35–70 mm (1.4–2.8 in) wide. Adult leaves are the same shade of usually dull green on both sides, lance-shaped, 80–140 mm (3.1–5.5 in) long and 17–32 mm (0.67–1.26 in) wide, tapering to a petiole 10–20 mm (0.39–0.79 in) long. The flower buds are arranged on the ends of branchlets on a branched peduncle in groups of seven, the peduncle 4–9 mm (0.16–0.35 in) long, the individual buds on pedicels 2–5 mm (0.079–0.197 in) long. Mature buds are oval, about 7 mm (0.28 in) long and 4 mm (0.16 in) 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 5–7 mm (0.20–0.28 in) long and wide with the valves near rim level. [2] [3] [4]

Taxonomy

Eucalyptus paedoglauca was first formally described in 1991 by Lawrie Johnson and Donald Blaxell from material collected on Mount Stuart, near Townsville. The description was published in the journal Telopea in a paper by Ken Hill and Johnson. [5] [4] The specific epithet (paedoglauca) is from ancient Greek, meaning "child" or "youth" and "pale blue or grey", referring to the glaucous juvenile leaves. [2]

Distribution and habitat

Mount Stuart ironbark grows in remnant vegetation on Mount Stuart and a few other hills near Townsville. [3]

Conservation status

This eucalypt is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and by the Queensland Government Nature Conservation Act 1992 . The main threats to the species are road maintenance and inappropriate fire regimes. [3] [6]

See also

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<i>Eucalyptus beaniana</i> Species of eucalyptus

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Eucalyptus capitanea, commonly known as the desert ridge-fruited mallee, is a species of mallee that is endemic to South Australia. It often has rough, flaky bark on the lower part of the trunk, smooth bark above, lance-shaped adult leaves, ribbed, oval flower buds in groups of seven, cream-coloured flowers and ribbed, urn-shaped fruit.

Eucalyptus farinosa is a species of small tree that is endemic to Queensland. It has hard, dark grey ironbark, egg-shaped to lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to barrel-shaped and ribbed fruit.

References

  1. ↑ "Eucalyptus paedoglauca". Australian Plant Census. Retrieved 25 November 2019.
  2. 1 2 3 "Eucalyptus paedoglauca". Euclid: Centre for Australian National Biodiversity Research. Retrieved 30 May 2020.
  3. 1 2 3 "Approved Conservation Advice for Eucalyptus paedoglauca" (PDF). Australian Government Department of the Environment. Retrieved 25 November 2019.
  4. 1 2 Johnson, Lawrence A.S.; Blaxell, Donald F. (1991). "Systematic studies in the eucalypts - 3. New taxa in Eucalyptus (Myrtaceae)". Telopea. 4 (2): 243–244.
  5. ↑ "Eucalyptus paedoglauca". APNI. Retrieved 25 November 2019.
  6. ↑ "Mt Stuart Ironbark - Eucalyptus paedoglauca". WetlandInfo. Queensland Government . Retrieved 12 November 2016.
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