Eucalyptus balladoniensis

Last updated

Balladonia mallee
Eucalyptus balladoniensis habit.jpg
Eucalyptus balladoniensis growing near Balladonia
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. balladoniensis
Binomial name
Eucalyptus balladoniensis

Eucalyptus balladoniensis, commonly known as the Balladonia mallee, [3] is a mallee that is endemic to an area in the south of Western Australia. It has rough bark on the lower half of its stems, smooth brownish bark above, lance-shaped leaves, flower buds in groups of seven, pale yellow flowers and hemispherical to more or less spherical fruit.

Contents

flower buds Eucalyptus balladoniensis buds.jpg
flower buds
flowers Eucalyptus balladoniensis flowers.jpg
flowers
fruit Eucalyptus balladoniensis fruit.jpg
fruit

Description

Eucalyptus balladoniensis is a mallee that typically grows to a height of 2.5 to 10 metres (8.2 to 32.8 ft) and has rough, dark grey, fibrous to flaky bark on the lower half of its stems and smooth dark grey bark above that reveals smooth brownish bark above when in sheds in short ribbons. Young plants and coppice regrowth have dull greyish green, linear to narrow lance-shaped leaves 100–150 mm (3.9–5.9 in) long and 6–20 mm (0.2–0.8 in) wide. Adult leaves are lance-shaped, 70–135 mm (2.8–5.3 in) long and 10–27 mm (0.4–1 in) wide on a petiole 12–25 mm (0.47–0.98 in) long. [3] [4] [5] [6]

The flowers are borne in groups of seven in leaf axils on an unbranched peduncle 10–20 mm (0.39–0.79 in) long, the individual buds sessile or on a pedicel 5–11 mm (0.20–0.43 in) long. Mature buds are more or less spherical, 19–25 mm (0.75–0.98 in) long and 9–11 mm (0.4–0.4 in) wide with a beaked operculum, the beak less obvious as the bud develops. Flowering mainly occurs from August to October and the flowers are pale yellow. The fruit is a woody hemispherical or shortened spherical capsule 7–11 mm (0.28–0.43 in) long and 10–14 mm (0.4–0.6 in) wide. [3] [4] [5] [6]

Taxonomy and naming

Eucalyptus balladoniensis was first formally described in 1976 by Ian Brooker from a specimen he collected 80 km (50 mi) south of Zanthus on the road to Balladonia. The description was published in the journal Nuytsia . [7] [6] The specific epithet (balladoniensis) is a reference to the distribution of this eucalypt - the ending -ensis a Latin suffix "denoting place, locality [or] country". [4] [8]

In 1992 Ken Hill and Lawrie Johnson described two subspecies of E. balladoniensis: [9]

Distribution and habitat

Balladonia mallee grows in dry woodland, often on sandy rises or calcareous sandy loam. Subspecies balladoniensis has a wide distribution south of the Eyre Highway but subspecies sedens only occurs between Balladonia and Zanthus. [4]

Conservation

Both subspecies of E. balladoniensis are classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [3]

See also

Related Research Articles

<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 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 fraseri</i> Species of eucalyptus

Eucalyptus fraseri, commonly known as Balladonia gum, is a species of tree or mallet that is endemic to Western Australia. It has smooth white to greyish bark, lance-shaped or curved adult leaves, flower buds in groups of seven or nine, white flowers and cup-shaped, conical or hemispherical fruit.

Eucalyptus indurata, commonly known as ironbark or ironbark mallee, is a species of tree or mallee that is endemic to southern Western Australia. It has rough, hard, blackish, furrowed bark on the trunk, smooth whitish bark above, lance-shaped adult leaves, flower buds in groups of seven, white to pale yellow flowers and shortened spherical fruit.

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

Eucalyptus insularis, commonly known as Twin Peak Island mallee, or North Twin Peak Island mallee, is a species of mallee that is endemic to a small area of southern Western Australia. It has mostly smooth bark, dull green, linear adult leaves, flower buds in group of between nine and twenty or more, white flowers and barrel-shaped fruit.

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

Eucalyptus phaenophylla, also known as common southern mallee, is a species of mallee that is endemic to Western Australia. It has smooth bark, linear to narrow lance-shaped or narrow elliptical adult leaves, flower buds in groups of up to thirteen, pale lemon-coloured flowers and barrel-shaped, cylindrical or conical 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 thamnoides, also known as brown mallee, is a species of mallee that is endemic to south western Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, cream-coloured to pale yellow flowers and cup-shaped, conical or bell-shaped fruit.

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

Eucalyptus yilgarnensis, commonly known as yorrell or yorrel, is a species of mallee, rarely a small tree, that is endemic to Western Australia. It usually has rough bark on the trunk, smooth bark above, linear to narrow elliptical or narrow lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and barrel-shaped fruit.

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

Eucalyptus celastroides, commonly known by the Noongar name of mirret, is a species of eucalypt that is endemic to the south-west of Western Australia. It is a mallee, rarely a tree, and has rough bark on about half of the lower half of its tunk, smooth above, narrow lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and urn-shaped fruit.

<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 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.

<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 semiglobosa</i> Species of eucalyptus

Eucalyptus semiglobosa is a species of mallee or small tree that is endemic to the south coast of Western Australia. It has smooth bark, broadly lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and ribbed or wrinkled, shortened spherical or hemispherical 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.

References

  1. Fensham, R.; Collingwood, T.; Laffineur, B. (2019). "Eucalyptus balladoniensis". IUCN Red List of Threatened Species . 2019: e.T133378024A133378026. doi: 10.2305/IUCN.UK.2019-3.RLTS.T133378024A133378026.en . Retrieved 20 September 2021.
  2. "Eucalyptus balladoniensis". Australian Plant Census. Retrieved 9 March 2019.
  3. 1 2 3 4 "Eucalyptus balladoniensis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. 1 2 3 4 "Eucalyptus balladoniensis subsp. balladoniensis". Euclid: Centre for Australian National Biodiversity Research. Retrieved 11 March 2019.
  5. 1 2 Chippendale, George McCartney. "Eucalyptus balladoniensis". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 11 March 2019.
  6. 1 2 3 Brooker, M. Ian (1976). "Six new taxa of Eucalyptus from Western Australia". Nuytsia. 2 (2): 103–105. Retrieved 11 March 2019.
  7. "Eucalyptus balladoniensis". APNI. Retrieved 11 March 2019.
  8. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 303.
  9. Hill, Kenneth D.; Johnson, Lawrence A.S. (1992). "Systematic studies in the eucalypts. 5. New taxa and combinations in Eucalyptus (Myrtaceae)". Telopea. 4 (4): 614–617. doi: 10.7751/telopea19814948 . Retrieved 2 November 2021.
  10. "Eucalyptus balladoniensis subsp. balladoniensis". APNI. Retrieved 11 March 2019.
  11. "Eucalyptus balladoniensis subsp. balladoniensis". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  12. "Eucalyptus balladoniensis subsp. sedens". APNI. Retrieved 11 March 2019.
  13. "Eucalyptus balladoniensis subsp. sedens". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.