Eucalyptus rosacea

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

Eucalyptus rosacea is a species of mallee that is endemic to Western Australia. It has smooth, greyish bark, linear to narrow oblong adult leaves, flower buds in groups of seven, pink, red or cream-coloured flowers and flattened hemispherical to almost saucer-shaped fruit.

Contents

Description

Eucalyptus rosacea is a mallee that typically grows to a height of 4 m (13 ft) and forms a lignotuber. It has smooth greyish bark that is shed in ribbons to reveal pinkish or yellowish new bark. Young plants and coppice regrowth have dull, greyish, linear leaves that are 35–80 mm (1.4–3.1 in) long and 2–4 mm (0.079–0.157 in) wide. Adult leaves are arranged alternately, the same shade of dull greyish to bluish green on both sides, linear to narrow oblong, 60–120 mm (2.4–4.7 in) long and 5–10 mm (0.20–0.39 in) wide, tapering to a petiole 4–10 mm (0.16–0.39 in) long. The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle 10–30 mm (0.39–1.18 in) long, the individual buds on pedicels 7–10 mm (0.28–0.39 in) long. Mature buds are oval, 11–17 mm (0.43–0.67 in) long and 6–7 mm (0.24–0.28 in) wide with a tapered, horn-like operculum 9–15 mm (0.35–0.59 in) long. Flowering occurs from November to February and the flowers range in colour from white through pink to deep red. The fruit is a woody, flattened hemispherical to almost saucer-shaped capsule 3–5 mm (0.12–0.20 in) long and 6–12 mm (0.24–0.47 in) wide with the valves near rim level or protruding. [2] [3] [4] [5]

Taxonomy and naming

Eucalyptus rosacea was first formally described in 1992 by Lawrie Johnson and Ken Hill in the journal Telopea from material collected near Queen Victoria Spring in 1986. The specific epithet (rosacea) is from the Latin word rosaceus, meaning "like the flower of a single rose", referring to the frequently pink colour of the flowers and bark. [4] [6] [7]

Distribution and habitat

This mallee grows in low, open mallee shrubland in yellow or red sandy soils east of Laverton and Queen Victoria Spring to the edge of the Great Victoria Desert. [2] [4]

Conservation status

This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [5]

See also

Related Research Articles

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<i>Eucalyptus leptophylla</i> Species of plant

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

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

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

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Eucalyptus olivina is a species of mallee or a tree that is endemic to Western Australia. It has smooth greyish bark, linear to narrow lance-shaped adult leaves, flower buds in groups of seven or nine, creamy white flowers and short barrel-shaped to cup-shaped fruit.

Eucalyptus pruiniramis, commonly known as Jingymia gum or midlands gum is a species of mallee or tree that is endemic to a small area of Western Australia. It usually has rough bark on the lower half of the trunk, smooth bark above, dull green, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and cylindrical to cup-shaped fruit.

Eucalyptus quadrans is a species of mallee or a small tree that is endemic to the southwest of Western Australia. It has smooth, greyish bark, narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit that are square in cross-section.

Eucalyptus semota, commonly known as marymia mallee, is a species of mallee or small tree that is endemic to a small area in central Western Australia. It has rough, flaky to fibrous bark on the trunk, smooth grey or brown bark above, linear to narrow lance-shaped leaves, flower buds in groups of seven or nine, white flowers and conical to cup-shaped fruit.

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

Eucalyptus synandra, commonly known as Jingymia mallee, is a mallee that is native to Western Australia. It has smooth bark, dull green, linear to narrow lance-shaped leaves, flower buds in groups of seven, creamy white to pink flowers and hemispherical to saucer-shaped fruit.

Eucalyptus tenera, commonly known as the glazed mallee or sand mallee, is a species of mallee that is endemic to Western Australia. It has smooth bark, narrow lance-shaped to elliptical leaves, flower buds in groups of seven to eleven, lemon yellow flowers and cup-shaped to barrel-shaped fruit.

<i>Eucalyptus wimmerensis</i> Species of plant

Eucalyptus wimmerensis, commonly known as the Wimmera mallee box or the broad-leaved green mallee, is a species of mallee that is endemic to an area around the border between Victoria and South Australia. It usually has smooth bark on the trunk and branches, linear to narrow oblong leaves, flower buds in groups of seven to eleven, white flowers and cup-shaped to barrel-shaped fruit.

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

Eucalyptus cyclostoma is a species of mallee that is endemic to an area in the south of Western Australia. It has smooth, greyish bark, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and more or less spherical fruit.

Eucalyptus depauperata is a species of mallee that is endemic to the south-west of Western Australia. It has spindly stems with smooth bark, linear to narrow elliptic adult leaves, flower buds in groups of seven, usually lemon-yellow flowers and conical to cup-shaped fruit. It is most common near Lake King.

Eucalyptus proxima, commonly known as nodding mallee or red-flowered mallee, is a species of mallee that is endemic to a small area in the south-west of Western Australia. It has smooth greyish bark, lance-shaped adult leaves, flower buds in groups of seven, red to pink, sometimes yellowish flowers and conical to slightly bell-shaped fruit.

References

  1. ↑ "Eucalyptus rosacea". Australian Plant Census. Retrieved 15 December 2019.
  2. 1 2 "Eucalyptus rosacea". Euclid: Centre for Australian National Biodiversity Research. Retrieved 29 May 2020.
  3. ↑ "Eucalyptus rosacea". Government of Western Australia, Kings Park and Botanic Garden Parks Authority. Retrieved 15 December 2019.
  4. 1 2 3 Johnson, Lawrence A.S.; Hill, Kenneth D. (1992). "Systematic studies in the eucalypts - 5. New Taxa and combination in Eucalyptus (Myrtaceae) in Western Australia". Kenneth D. 4 (4): 623–625.
  5. 1 2 "Eucalyptus rosacea". FloraBase . Western Australian Government Department of Parks and Wildlife.
  6. ↑ William T. Stearn (1992). Botanical Latin. History, grammar, syntax, terminology and vocabulary (4th ed.). Portland, Oregon: Timber Press. p. 485.
  7. ↑ "Eucalyptus rosacea". APNI. Retrieved 15 December 2019.
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