Eucalyptus redunca

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Black marlock
Eucalyptus redunca.jpg
Eucalyptus redunca growing south of Ravensthorpe
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. redunca
Binomial name
Eucalyptus redunca
Synonyms [1]

Eucalyptus reduncaSchauer var. redunca

bark Eucalyptus redunca bark.jpg
bark
flower buds Eucalyptus redunca buds.jpg
flower buds
fruit Eucalyptus redunca fruit.jpg
fruit

Eucalyptus redunca, commonly known as black marlock, [2] is a species of mallee or a shrub that is endemic to Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of between nine and fifteen, lemon-coloured flowers and barrel-shaped fruit.

Contents

Description

Eucalyptus redunca is a mallee that typically grows to a height of 1–4.5 m (3 ft 3 in – 14 ft 9 in) and forms a lignotuber. It has grey and pale brown bark that is shed in short ribbons. The adult leaves are narrow-lance-shaped to lance-shaped, 50–75 mm (2.0–3.0 in) long and 9–25 mm (0.35–0.98 in) wide tapering to a petiole 8–15 mm (0.31–0.59 in) long. The flower buds are arranged in leaf axils in groups of between nine and fifteen on an unbranched peduncle 8–15 mm (0.31–0.59 in) long, the individual buds on pedicels 3–5 mm (0.12–0.20 in) long. Mature buds are an elongated spindle shape, 16–26 mm (0.63–1.02 in) long and 3–4 mm (0.12–0.16 in) wide with a conical to horn-shaped operculum that is two or three times as long as the floral cup. Flowering occurs from July to October or November and the flowers are lemon-coloured. The fruit is a woody, barrel-shaped capsule 7–11 mm (0.28–0.43 in) long and 5–8 mm (0.20–0.31 in) wide with the valves near rim level. [2] [3] [4]

Taxonomy and naming

Eucalyptus redunca was first formally described in 1844 by Johannes Conrad Schauer in 1844 in Johann Georg Christian Lehmann's book Plantae Preissianae . [5] [6] The specific epithet (redunca) is from the Latin word reduncus meaning bent backwards, referring to the tip of the operculum that is sometimes bent when young. [7]

Distribution

Black marlock is found on undulating, low ridges mostly along the south coast between Cape Riche and the Fitzgerald River National Park, and inland as far as Ravensthorpe. It grows in shrubland and open woodland in sand-clay soils often over laterite. [2] [3] [4]

The species is associated with the western mallee subgroup which is characterised by several eucalypts including E. oleosa , E. moderata , E. incrassata , E. foecunda , E. eremophila and E. uncinata . The understorey is predominantly shrubby with species of Melaleuca and Acacia along with the occasional Triodia . [8]

Conservation status

This mallee 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 macrandra</i> Species of eucalyptus

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

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<i>Verticordia habrantha</i> Species of flowering plant

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

Eucalyptus foecunda, commonly known as narrow-leaved red mallee, Fremantle mallee or coastal dune mallee, is a species of plant in the myrtle family that is endemic to Western Australia. It has rough bark on the trunk, smooth bark above, narrow lance-shaped adult leaves, flower buds in groups of nine or eleven, creamy white flowers and cup-shaped fruit. It was previously included with the more widespread Eucalyptus leptophylla.

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

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

Eucalyptus arachnaea, commonly known as the black-stemmed mallee, is a mallee or tree that is endemic to Western Australia. It has rough, stringy bark, lance-shaped leaves and white flowers in groups of up to thirteen.

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

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Eucalyptus crispata, commonly known as the Yandanooka mallee, is a species of tall mallee that is endemic to a small area on the east coast of Western Australia. It has a stocking of rough bark near the base of its trunk, smooth grey bark above, lance-shaped adult leaves, flower buds in groups of between nine and eleven, whitish to yellowish cream flowers and cup-shaped, barrel-shaped or hemispherical to cylindrical fruit.

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

Eucalyptus hebetifolia is a species of mallee that is endemic to southern Western Australia. It has smooth grey and brownish bark with loose ribbons of bark near the base, lance-shaped adult leaves, flower buds in groups of up to thirteen, creamy white flowers and conical to barrel-shaped fruit.

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

Eucalyptus incrassata, commonly known as the lerp mallee, yellow mallee, ridge fruited mallee or rib fruited mallee, is a species of mallee that is endemic to southern Australia. It has smooth bark, sometimes with rough, ribbony bark near the base, lance-shaped adult leaves, flower buds in groups of seven, creamy white, pale yellow, sometimes pink or red flowers, and cylindrical, barrel-shaped or bell-shaped fruit.

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

Eucalyptus luteola is a species of mallee that is endemic to a small area of Western Australia. It has smooth grey bark with rough greyish ribbons near the base, linear to narrow lance-shaped adult leaves, flower buds in groups of eleven to thirteen, lemon-coloured flowers and cylindrical to barrel-shaped fruit.

Eucalyptus spreta is a species of mallet or marlock that is endemic to the south coast of Western Australia. It has smooth bark, narrow lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit.

Eucalyptus subangusta is a species of tree, mallee or mallet that is endemic to the southwest of Western Australia. It has smooth bark, narrow lance-shaped leaves, flower buds in groups of up to nineteen, white flowers and cup-shaped to barrel-shaped fruit.

Eucalyptus tephroclada is a species of mallee that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in pendent groups of nine to thirteen, pale lemon yellow flowers and barrel-shaped to cup-shaped fruit.

<i>Eucalyptus uncinata</i> Species of grass

Eucalyptus uncinata, commonly known as the hook-leaved mallee, is a species of mallee that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds arranged in groups of nine to thirteen, creamy white flowers and barrel-shaped to oval or cylindrical fruit.

<i>Kunzea preissiana</i> Species of shrub

Kunzea preissiana is a flowering plant in the myrtle family, Myrtaceae, and is endemic to the southwest of Western Australia. It is a shrub with hairy branches and leaves, pink to mauve flowers in groups on the ends of shoots, and twenty to thirty stamens about the same length as the petals. It is a widespread, often locally common species across its range.

<i>Leptospermum erubescens</i> Species of shrub

Leptospermum erubescens, commonly known as the roadside tea tree, is a species of shrub that is endemic to southwest of Western Australia. It has thin, fibrous bark, egg-shaped leaves, small white flowers and woody fruit.

References

  1. 1 2 "Eucalyptus redunca". Australian Plant Census. Retrieved 11 December 2019.
  2. 1 2 3 "Eucalyptus redunca". Euclid: Centre for Australian National Biodiversity Research. Retrieved 29 May 2020.
  3. 1 2 Chippendale, George M. "Eucalyptus redunca". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 11 December 2019.
  4. 1 2 3 "Eucalyptus redunca". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. "Eucalyptus redunca". APNI. Retrieved 11 December 2019.
  6. Lehmann, Johann Georg Christian (ed.); Schauer, Johannes Conrad (1844). Plantae Preissianae. Hamburg: Sumptibus Meissneri. pp. 127–128. Retrieved 11 December 2019.{{cite book}}: |first1= has generic name (help)
  7. Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 292. ISBN   9780958034180.
  8. "Open mallee woodlands and sparse mallee woodlands" (PDF). Commonwealth of Australia . Retrieved 6 May 2017.