Eucalyptus rupestris

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Prince Regent gum
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. rupestris
Binomial name
Eucalyptus rupestris

Eucalyptus rupestris, commonly known as Prince Regent gum, [2] is a species of small tree that is endemic to the Kimberley region of Western Australia. It has smooth bark, elliptical to egg-shaped or broadly lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to more or less cylindrical fruit.

Contents

Description

Eucalyptus rupestris is a tree that typically grows to a height of 4–8 m (13–26 ft) and forms a lignotuber. It has smooth, white to grey bark that is pale orange and powdery when new. Young plants and coppice regrowth have egg-shaped to round leaves that are 50–70 mm (2.0–2.8 in) long and 35–80 mm (1.4–3.1 in) wide and petiolate. Adult leaves are arranged alternately, the same shade of dull green on both sides, elliptic, to egg-shaped or broadly lance-shaped, 37–75 mm (1.5–3.0 in) long and 10–25 mm (0.39–0.98 in) wide, tapering to a petiole 8–18 mm (0.31–0.71 in) long. The flower buds are mostly arranged in leaf axils in groups of seven, sometimes clustered near the ends of branchlets, on a peduncle 3–5 mm (0.12–0.20 in) long, the individual buds on pedicels up to 2 mm (0.079 in) long. Mature buds are oval to cylindrical, about 4 mm (0.16 in) long and 3 mm (0.12 in) wide with a conical to rounded operculum. Flowering occurs from May to August and the flowers are white. The fruit is a woody cup-shaped to more or less cylindrical capsule 3–5 mm (0.12–0.20 in) long and 3–4 mm (0.12–0.16 in) wide with the valves near rim level. [2] [3] [4] [5]

Taxonomy and naming

Eucalyptus rupestris was first formally described in 1986 by Ian Brooker and Christopher Charles Done from material collected in Prince Regent River Reserve by Alex George in 1974. [5] [6] The specific epithet (rupestris) is a Latin word meaning "rocky", referring to the situation in which this species is usually found. [7] [5]

Distribution and habitat

Prince Regent gum grows in sand on sandstone ridges, including near the Prince Regent River, Mitchell River and Drysdale River National Park in the Kimberley region. [2] [3]

Conservation status

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

See also

Related Research Articles

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

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

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

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

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

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

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

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

Eucalyptus ceracea also known as the Seppelt Range gum or Seppelt Range yellow-jacket, is a species of small tree or mallee that is endemic to a small area in the north of Western Australia. It has thick, fibrous or flaky bark on the trunk and larger branches, dull, glaucous, egg-shaped leaves arranged in opposite pairs, flower buds in groups of seven or nine, bright orange flowers and urn-shaped fruit. The leaves, buds and fruit are covered with a white wax.

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

Eucalyptus confluens, commonly known as Kimberley gum, is a species of small tree that is endemic to northern Australia. It has smooth, powdery white bark, lance-shaped adult leaves, more or less spherical flower buds in groups of seven, white flowers and cup-shaped to hemispherical fruit. It grows in the Kimberley region of Western Australia and in adjacent areas of the Northern Territory.

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

Eucalyptus neglecta, commonly known as Omeo gum, is a species of small tree that is endemic to a small area of Victoria, Australia. Older plants have rough, fibrous bark on the trunk, otherwise smooth grey to brownish bark, a crown of mostly lance-shaped, egg-shaped or oblong leaves arranged in opposite pairs, flower buds in groups of between seven and fifteen, white flowers and cup-shaped or conical fruit.

Eucalyptus pyrenea, commonly known as Pyrenees gum, is a species of tree that is endemic to Victoria, Australia. It has smooth, greyish bark with rough, fibrous bark on the lower part of the trunk, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit.

References

  1. "Eucalyptus rupestris". Australian Plant Census. Retrieved 18 December 2019.
  2. 1 2 3 "Eucalyptus rupestris". Euclid: Centre for Australian National Biodiversity Research. Retrieved 29 May 2020.
  3. 1 2 Chippendale, George M. "Eucalyptus rupestris". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 18 December 2019.
  4. 1 2 "Eucalyptus rupestris". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. 1 2 3 Brooker, M. Ian H.; Done, Christopher C. (1986). "Eucalyptus ceracea, E. rupestris and E. chlorophylla (Myrtaceae), three new species in the Kimberley Division of Western Australia". Nuytsia. 5 (3): 385–387. Retrieved 18 December 2019.
  6. "Eucalyptus rupestris". APNI. Retrieved 18 December 2019.
  7. Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 299. ISBN   9780958034180.