Eucalyptus pantoleuca

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Round-leaved gum
Eucalyptus pantoleuca.jpg
Eucalyptus pantoleuca in the Mueller Ranges
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. pantoleuca
Binomial name
Eucalyptus pantoleuca

Eucalyptus pantoleuca, commonly known as round-leaved gum or Panton River white gum, [2] is a species of small tree that is endemic to the Kimberley region of Western Australia. It has smooth, powdery bark, more or less round adult leaves, flower buds in groups of three, white flowers and conical fruit that are glaucous at first.

Contents

Description

Eucalyptus pantoleuca is an often straggly tree that typically grows to a height of 5–12 m (16–39 ft) and forms a lignotuber. It has smooth, powdery white bark that is pale pink to pale orange when new. Young plants and coppice regrowth have stems that are more or less square in cross-section with a wing on each corner and more or less round leaves 95–150 mm (3.7–5.9 in) long and 100–155 mm (3.9–6.1 in) wide arranged in opposite pairs. Adult leaves are also arranged in opposite pairs, more or less round, triangular or egg-shaped, the same shade of dull, glaucous green on both sides, 90–150 mm (3.5–5.9 in) long and 70–160 mm (2.8–6.3 in) wide on a flattened petiole 15–35 mm (0.59–1.38 in) long. The flower buds are arranged in leaf axils in groups of three on an unbranched peduncle 10–20 mm (0.39–0.79 in) long, the individual buds sessile or on very short pedicels. Mature buds are oval to spindle-shaped, glaucous, 14–25 mm (0.55–0.98 in) long and 13–22 mm (0.51–0.87 in) wide with a rounded operculum. Flowering occurs in July or November and the flowers are white or yellow. The fruit is a woody, conical capsule that is glaucous at first, 9–15 mm (0.35–0.59 in) long and 15–24 mm (0.59–0.94 in) wide with the valves protruding strongly. [2] [3] [4]

Taxonomy

Eucalyptus pantoleuca was first described in 2000 by Lawrie Johnson and Ken Hill in the journal Telopea from material Johnson collected near 'Tableland' homestead in 1967. [3] [5] The specific epithet (pantoleuca) is from ancient Greek meaning "entirely white". [6]

Distribution and habitat

Round-leaved gum is found along creeks and on hillsides in the Kimberley region of Western Australia where it grows in sandy-loam alluvial soils in low-lying areas or gentle slopes. [2] [4]

Conservation status

This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [4]

See also

Related Research Articles

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

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<i>Corymbia flavescens</i> Species of plant

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

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

Eucalyptus houseana, commonly known as Kimberley white gum, or is a species of medium-sized tree that is endemic to the Kimberley region of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and conical to hemispherical fruit.

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

Eucalyptus mooreana, commonly known as Moore's gum, mountain white gum or King Leopold Range mallee, is a species of stunted, straggly tree or mallee that is endemic to the Kimberley region of Western Australia. It has smooth, powdery white bark, a crown of juvenile, sessile, stem-clasping leaves arranged in opposite pairs, flower buds arranged in groups of seven, white flowers and cup-shaped to hemispherical fruit.

Eucalyptus ordiana is a species of small tree or a mallee that is endemic to the Kimberley area of Western Australia. It has smooth, powdery bark, egg-shaped leaves, flower buds in groups of seven, white flowers and cup-shaped fruit.

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<i>Corymbia aspera</i> Species of plant

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<i>Corymbia collina</i> Species of plant

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<i>Corymbia confertiflora</i> Species of plant

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

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

Eucalyptus cupularis, commonly known as the Halls Creek white gum, or in the local indigenous Djaru peoples' language as wawulinggi, is a species of small tree that is endemic to an area in northwestern Australia. It has smooth, powdery white bark, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to conical fruit.

Eucalyptus educta is a spreading, twisted mallee that is endemic to Western Australia. It has reddish brown minni ritchi bark, more or less rounded to egg-shaped leaves, glaucous flower buds arranged in groups of seven, creamy white flowers and flattened hemispherical fruit.

Eucalyptus glomericassis, commonly known as scarp white gum, is a species of small tree that is endemic to the Northern Territory. It has smooth bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical fruit.

Eucalyptus tephrodes is a species of small tree or mallee that is endemic to Western Australia. It has rough bark on the trunk and larger branches, smooth bark above, egg-shaped to lance-shaped adult leaves, flower buds in groups of three on the ends of branchlets and cup-shaped to hemispherical fruit.

References

  1. ↑ "Eucalyptus pantoleuca". Australian Plant Census. Retrieved 26 November 2019.
  2. 1 2 3 "Eucalyptus pantoleuca". Euclid: Centre for Australian National Biodiversity Research. Retrieved 30 May 2020.
  3. 1 2 Johnson, Lawrence A.S.; Hill, Kenneth D. (2000). "Systematic studies in the eucalypts. 10. New tropical and subtropical eucalypts from Australia and New Guinea". Telopea. 8 (4): 513–516.
  4. 1 2 3 "Eucalyptus pantoleuca". FloraBase . Western Australian Government Department of Parks and Wildlife.
  5. ↑ "Eucalyptus pantoleuca". APNI. Retrieved 26 November 2019.
  6. ↑ Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 270. ISBN   9780958034180.
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