Eucalyptus phenax

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Eucalyptus phenax
Eucalyptus phenax habit.jpg
Near Hopetoun
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. phenax
Binomial name
Eucalyptus phenax
Flower buds Eucalyptus phenax buds.jpg
Flower buds
Fruit Eucalyptus phenax fruit.jpg
Fruit

Eucalyptus phenax, commonly known as green dumosa mallee [2] or white mallee, [3] is a species of mallee that is endemic to southern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and cup-shaped to cylindrical fruit.

Contents

Description

Eucalyptus phenax is a mallee or shrub that typically grows to a height of 3–8 m (9.8–26.2 ft) and forms a lignotuber. It has smooth, creamy grey bark that is shed in ribbons. Young plants and coppice regrowth have egg-shaped to lance-shaped leaves that are 40–90 mm (1.6–3.5 in) long and 9–30 mm (0.35–1.18 in) wide. Adult leaves are the same glossy green on both sides, lance-shaped, 50–120 mm (2.0–4.7 in) long and 8–35 mm (0.31–1.38 in) wide on a petiole 7–30 mm (0.28–1.18 in) long. The flower buds are arranged in leaf axils, usually in groups of seven or nine on an unbranched peduncle 3–18 mm (0.12–0.71 in) long, the individual buds sessile or on pedicels up to 3 mm (0.12 in) long. Mature buds are cylindrical to oval, 7–11 mm (0.28–0.43 in) long and 4–6 mm (0.16–0.24 in) wide with a conical to rounded operculum. Flowering occurs between October and May and the flowers are white. The fruit is a woody, cup-shaped to cylindrical capsule 4–10 mm (0.16–0.39 in) long and 5–8 mm (0.20–0.31 in) wide. [2] [3] [4] [5] [6]

Taxonomy and naming

Eucalyptus phenax was first formally described in 1996 by Ian Brooker and Andrew Slee from material collected by Dean Nicolle near Tailem Bend in 1985. [7] [8] The specific epithet (phenax) is an ancient Greek word meaning "imposter", referring to the fact that this species was previously known as E. anceps, now a synonym of E.rugosa . [2] [9]

In 2000, Dean Nicolle described two subspecies and the names have been accepted by the Australian Plant Census: [10]

Distribution and habitat

This eucalypt grows in mallee scrubs and is widely distributed in the southwest of Western Australia, the south-east of South Australia and the north-west of Victoria. It is most common in Western Australia where it occurs from near Bolgart through the southern wheatbelt to Esperance. Subspecies compressa is only known from the eastern side of Kangaroo Island and on the Fleurieu Peninsula. [2] [13]

Conservation status

In Western Australia, this eucalypt is classified as "not threatened" in Western Australia by the Western Australian Government Department of Parks and Wildlife. [6]

See also

Related Research Articles

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

Eucalyptus erythronema, commonly known as the red-flowered mallee, is a species of mallee or tree and is endemic to Western Australia. It has smooth, dark pink to red bark that is shed to reveal whitish bark, and has lance-shaped adult leaves, pendulous flower buds mostly arranged in groups of three, red or yellow flowers and conical fruit.

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

Eucalyptus lansdowneana, commonly known as the crimson mallee or the red-flowered mallee box, is a species of slender stemmed, straggly mallee that is endemic to a restricted area of South Australia. It has rough, fibrous or flaky bark at the base, smooth, grey over creamy-white bark, lance-shaped adult leaves, flower buds in groups of seven, crimson flowers and barrel-shaped fruit.

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

Eucalyptus flocktoniae, commonly known as merrit, is a species of tree or mallee that is endemic to Western Australia. It has smooth, silvery grey bark, lance-shaped to curved adult leaves, prominently beaked flower buds in groups of seven or nine and barrel-shaped or urn-shaped fruit.

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

Eucalyptus socialis, commonly known as the red mallee, or grey mallee, is a species of mallee that is endemic to inland Australia.

<i>Eucalyptus calycogona</i> Species of plant in Australia

Eucalyptus calycogona, commonly known as the gooseberry mallee or square fruited mallee, is a mallee that is endemic to southern Australia. It has smooth bark, narrow lance-shaped adult leaves, flower buds that are square in cross-section arranged in groups of seven in leaf axils, creamy white, sometimes pink flowers, and fruit that are square in cross-section.

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

Eucalyptus effusa, commonly known as rough-barked gimlet, is a species of mallee or small tree that is endemic to Western Australia. It has thin, rough bark on the base of the trunk, smooth bark above, linear to narrow lance-shaped adult leaves, flower buds arranged in groups of seven, white flowers and cup-shaped to conical fruit.

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

Eucalyptus mannensis, commonly known as Mann Range mallee, is a species of mallee that is native to Western Australia, South Australian and the Northern Territory. It has rough bark at the base of the trunk, smooth bark above, narrow lance-shaped adult leaves, flower buds in groups of between seven and eleven, creamy white flowers and hemispherical fruit.

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

Eucalyptus rugosa, commonly known as the Kingscote mallee, is a species of mallee that is endemic to coastal areas of southern Western Australia and South Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of between seven and thirteen, white flowers and cup-shaped, conical or hemispherical fruit.

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

Eucalyptus striaticalyx, commonly known as Cue York gum or kopi gum, is a species of tree or mallee that is endemic to Western Australia. It has thick, rough, fibrous bark on the trunk and larger branches, lance-shaped adult leaves, flower buds in groups of between seven and thirteen, creamy white flowers and conical to cup-shaped fruit.

Eucalyptus vegrandis, commonly known as the Ongerup mallee or Cranbrook mallee, is a species of mallee that is endemic to the south-west of Western Australia. It has smooth bark, linear to lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and cup-shaped or conical 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 falciformis</i> Species of plant

Eucalyptus falciformis, commonly known as the Grampians peppermint or western peppermint, is a species of tree or mallee that is endemic to south eastern Australia. It has smooth bark, sometimes with rough, fibrous bark at the base, narrow lance-shaped to egg-shaped or curved adult leaves, flower buds in groups of eleven to twenty one, white flowers and cup-shaped to shortly cylindrical fruit.

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

Eucalyptus arcana, commonly known as the Mallee manna gum or Carpenter Rocks gum is a mallee that is endemic to South Australia. It has rough bark from the base of the trunk to the thinnest branches, lance-shaped, sometimes curved leaves, flower buds in groups of seven, white flowers and hemispherical fruit. It is only known from a single population near Carpenter Rocks.

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

Eucalyptus conglobata, also known as the cong mallee or Port Lincoln mallee, is a species of eucalypt that is native to the south coast of Western Australia and South Australia. It is a mallee with smooth bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and clustered hemispherical fruit.

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

Eucalyptus alatissima is a mallee that is endemic to central parts of the Great Victoria Desert. It has rough bark on the lower part of its stems, smooth tan to cream-coloured bark on its upper parts, egg-shaped to lance-shaped leaves and buds in groups of three. The buds have a powdery covering and are prominently winged.

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

Eucalyptus canescens, commonly known as the Ooldea Range mallee or Beadell's mallee, depending on subspecies, is a species of mallee that is endemic to southern Australia. It has rough bark from the base of the trunk to the thicker branches, smooth bark on the thin branches, egg-shaped to lance-shaped adult leaves, flower buds in groups of between seven and eleven, creamy white flowers and smooth cup-shaped to conical, and sometimes ribbed fruit.

<i>Eucalyptus socialis <span style="font-style:normal;">subsp.</span> eucentrica</i> Subspecies of plant

Eucalyptus socialis subsp. eucentrica, commonly known as the inland red mallee, is a subspecies of mallee that is endemic to inland Australia. It usually has rough bark on the base of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, pale creamy yellow flowers and barrel-shaped to urn-shaped or spherical fruit.

<i>Eucalyptus socialis <span style="font-style:normal;">subsp.</span> socialis</i> Subspecies of plant

Eucalyptus socialis subsp. socialis, commonly known as the summer red mallee, is a subspecies of mallee that is endemic to inland south-eastern Australia. It usually has rough bark on the base of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, pale creamy white flowers and barrel-shaped to urn-shaped or spherical fruit.

<i>Eucalyptus socialis <span style="font-style:normal;">subsp.</span> victoriensis</i> Subspecies of plant

Eucalyptus socialis subsp. victoriensis, commonly known as the red mallee, is a subspecies of mallee that is endemic to southern inland Australia. It usually has rough bark on the base of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, pale creamy yellow flowers and barrel-shaped to urn-shaped or spherical fruit.

Eucalyptus socialis subsp. viridans, commonly known as the green-leaved red mallee, is a subspecies of mallee that is endemic to south-eastern Australia. It usually has rough bark on the base of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, pale creamy yellow flowers and barrel-shaped to urn-shaped or spherical fruit.

References

  1. "Eucalyptus phenax". Australian Plant Census. Retrieved 30 November 2019.
  2. 1 2 3 4 "Eucalyptus phenax subsp. phenax". Euclid:Centre for Australian National Biodiversity Research. Retrieved 30 May 2020.
  3. 1 2 "Eucalyptus phenax subsp. phenax". South Australian Seed Conservation Service. Retrieved 30 November 2019.
  4. Messina, Andre; Walsh, Neville. "Eucalyptus phenax subsp. phenax". Royal Botanic Gardens Victoria. Retrieved 30 November 2019.
  5. Nicolle, Dean (2013). Native Eucalypts of South Australia. Adelaide: Dean Nicolle. pp. 122–127. ISBN   9780646904108.
  6. 1 2 "Eucalyptus phenax". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  7. "Eucalyptus phenax". APNI. Retrieved 29 November 2019.
  8. Brooker, M. Ian H.; Slee, Andrew V. (1996). "New taxa and some new nomenclature in Eucalyptus". Muelleria. 9: 77–80. Retrieved 30 November 2019.
  9. "Eucalyptus rugosa". Australian Plant Census. Retrieved 7 April 2021.
  10. Nicolle, Dean (2000). "New taxa of Eucalyptus informal subgenus Symphyomyrtus (Myrtaceae), endemic to South Australia" (PDF). Journal of the Adelaide Botanic Gardens. 19: 84–86. Retrieved 30 November 2019.
  11. "Eucalyptus phenax subsp. compressa". Australian Plant Census. Retrieved 30 November 2019.
  12. "Eucalyptus phenax subsp. phenax". Australian Plant Census. Retrieved 30 November 2019.
  13. "Eucalyptus phenax subsp. compressa". South Australian Seed Conservation Service. Retrieved 30 November 2019.