Eucalyptus rubida

Last updated

Candlebark
Eucalyptus rubida.jpg
Eucalyptus rubida in Burra, New South Wales
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. rubida
Binomial name
Eucalyptus rubida
flower buds Eucalyptus rubida buds.jpg
flower buds

Eucalyptus rubida, commonly known as candlebark, ribbon gum or white gum, [2] is a species of small to medium-sized tree that is endemic to south-eastern Australia. It has smooth bark, sometimes with rough bark at the base, lance-shaped or curved adult leaves, flower buds in groups of three, white flowers and cup-shaped, hemispherical or bell-shaped fruit.

Contents

Description

Eucalyptus rubida is a tree that typically grows to a height of 20–40 m (66–131 ft) and forms a lignotuber. It has smooth, powdery, greyish or pink bark that is shed in long ribbons but there is sometimes persistent fibrous bark near the base of the trunk. Young plants and coppice regrowth have sessile, glaucous, more or less round leaves 2–6 mm (0.079–0.236 in) wide arranged in opposite pairs. Adult leaves are arranged alternately, lance-shaped to curved, 80–175 mm (3.1–6.9 in) long and 8–34 mm (0.31–1.34 in) wide, tapering to a petiole 10–35 mm (0.39–1.38 in) long. The flower buds are arranged in leaf axils in groups of three on an unbanched peduncle, the individual buds sessile or an pedicels up to 4 mm (0.16 in) long. Mature buds are oval to spindle-shaped, 5–9 mm (0.20–0.35 in) long and 3–5 mm (0.12–0.20 in) wide with a conical to rounded operculum. Flowering mainly occurs from December to April and the flowers are white. The fruit is a woody cup-shaped, hemispherical or bell-shaped capsule 3–6 mm (0.12–0.24 in) long and 4–8 mm (0.16–0.31 in) wide with the valves near rim level or protruding slightly. [2] [3] [4] [5]

Taxonomy and naming

Eucalyptus rubida was first formally described in 1899 by Henry Deane and Joseph Maiden in Proceedings of the Linnean Society of New South Wales . [6] [7] The specific epithet (rubida) is from the Latin word rubidus meaning "red", referring to the seasonally red bark. [2]

In 1991, Lawrie Johnson and Ken Hill described two subspecies and the names are accepted by the Australian Plant Census as at December 2019: [8]

Distribution and habitat

Candlebark grows in woodland and forest, usually in shallow soils on tablelands, hills and slopes. Subspecies barbigerorum occurs on the Northern Tablelands north of Armidale. Subspecies rubida occurs on the Southern Tablelands of New South Wales, mainly on the northern side of the Great Dividing Range in Victoria, between Halls Gap and Delegate, and on the tablelands and mountain slopes of eastern Tasmania. [2] [5] [10]

Conservation status

Subspecies barbigerorum is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 . The main threats to the subspecies are habitat disturbance caused by agriculture, development and road work and by timber collection. [12]

See also

Related Research Articles

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

Eucalyptus viminalis, commonly known as the manna gum, white gum or ribbon gum, is a species of small to very tall tree that is endemic to south-eastern Australia. It has smooth bark, sometimes with rough bark near the base, lance-shaped to curved adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus dalrympleana, commonly known as mountain gum, mountain white gum, white gum and broad-leaved ribbon gum, is a species of tree that is endemic to southeastern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit.

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

Eucalyptus macrorhyncha, commonly known as the red stringybark, is a species of medium-sized tree that is endemic to eastern Australia. It has rough, stringy, grey to brown bark, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and hemispherical fruit.

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

Eucalyptus ebbanoensis, commonly known as the sandplain mallee, is a species of mallee that is endemic to Western Australia. It has smooth greyish bark, lance-shaped to curved adult leaves, flower buds in groups of three, whitish flowers and cup-shaped to hemispherical fruit.

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

Eucalyptus macarthurii, commonly known as the Camden woollybutt or Paddy's river box, is a species of medium-sized tree that is endemic to a small area of New South Wales. It has rough, fibrous bark on the trunk and larger branches, smooth above, narrow lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and small conical to bell-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 deanei</i> Species of eucalyptus

Eucalyptus deanei, commonly known as mountain blue gum, round-leaved gum, or Deane's gum, is a species of large tree endemic to New South Wales. It has smooth bark, lance-shaped leaves that are paler on the lower surface, flower buds in groups of seven to eleven, white flowers and cup-shaped to bell-shaped fruit.

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

Eucalyptus fastigata, commonly known as brown barrel or cut-tail, is a species of medium-sized to tall tree that is endemic to southeastern Australia. It has fibrous or stringy bark on the trunk and larger branches, smooth bark above, lance-shaped to curved adult leaves, flower buds in groups of eleven or more, white flowers and conical or pair-shaped fruit.

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

Eucalyptus quadrangulata, commonly known as the white-topped box or coast white box, is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical fruit.

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

Eucalyptus conica, commonly known as fuzzy box, is a species of tree endemic to eastern Australia. It has rough, flaky bark on the trunk and larger branches, smooth above, lance-shaped adult leaves, oval to diamond-shaped flower buds mostly arranged on a branching inflorescence on the ends of the branchlets, white flowers and conical fruit.

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

Eucalyptus squamosa, commonly known as scaly bark, is a species of small to medium-sized tree that is endemic to the Sydney region in New South Wales. It has rough, tessellated, fibrous or flaky bark, lance-shaped or curved adult leaves, flower buds in groups of seven, nine or eleven, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus amplifolia, commonly known as the cabbage gum, is a tree that is endemic to eastern Australia. It has smooth bark on its trunk and branches, lance-shaped leaves, and buds in groups of between seven and fifteen or more. The flowers are white and the fruit are woody hemispherical capsules. It is common on the coastal areas and tablelands of New South Wales and adjacent areas in south eastern Queensland, occurring as far south as Bega.

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

Eucalyptus aggregata, commonly known as black gum, is a medium-sized tree that is endemic to southeastern Australia. It has rough, flaky bark, sometimes smooth on the branches, lance-shaped leaves, green to yellow flower buds in group of seven, white flowers and more or less cup-shaped fruit. It is a component of grassy woodland, often in low-lying or swampy areas, much of which has been cleared and it is under threat.

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

Eucalyptus caleyi, commonly known as Caley's ironbark or Ovenden's ironbark is a species of small to medium-sized tree, endemic to eastern Australia. It has brown or black "ironbark" on the trunk and main branches, dull bluish grey lance-shaped to egg-shaped adult leaves, flower buds in groups of seven, white flowers and barrel-shaped or conical fruit. It grows on the Central and Northern Tablelands of New South Wales and in south-eastern Queensland.

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

Eucalyptus canobolensis, commonly known as the Mount Canobolas candlebark or silver-leaf candlebark, is a species of tree that is endemic to a small area of New South Wales in eastern Australia. It is a small tree with smooth bark on the trunk and branches, dull, lance-shaped adult leaves, flowers buds in groups of three, white flowers and cup-shaped, bell-shaped or conical fruit. It is only known from Mount Canobolas near Orange.

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

Eucalyptus approximans, commonly known as the Barren Mountain mallee, is a mallee endemic to a small area of New South Wales. It has smooth bark, linear to lance-shaped or curved adult leaves, club-shaped buds in groups of seven in the leaf axils, white flowers and cylindrical to cup-shaped fruit.

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

Eucalyptus pachycalyx, commonly known as the shiny-barked gum, is a species of tree that is endemic to north-eastern Australia. It has smooth, pale grey, mottled bark, lance-shaped or curved adult leaves, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus kessellii, commonly known as Jerdacuttup mallee, is a species of mallee that is endemic to an area along the south coast of Western Australia. It has very hard, rough bark on the trunk of larger specimens, smooth greyish and brownish bark above, lance-shaped to egg-shaped adult leaves, flower buds in groups of three or seven, creamy white flowers and downturned, conical to cup-shaped fruit.

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

Eucalyptus sargentii, commonly known as Salt River gum, is a species of mallet, mallee or small tree that is endemic to Western Australia. It has rough bark on part or all of the trunk, smooth bark above, linear to narrow lance-shaped leaves, flower buds in groups of seven, whitish to creamy yellow flowers and conical fruit.

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

Eucalyptus pauciflora subsp. niphophila, commonly known as snow gum, is a small tree or large shrub that is native to a few mountain peaks in eastern Australia. It has smooth bark, glossy green, lance-shaped to egg-shaped or elliptical leaves, flower buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having more delicate, pedicellate flower buds and smaller leaves.

References

  1. "Eucalyptus rubida". Australian Plant Census. Retrieved 16 December 2019.
  2. 1 2 3 4 "Eucalyptus rubida subsp. rubida". Euclid:Centre for Australian National Biodiversity Research. Retrieved 29 May 2020.
  3. 1 2 3 Hill, Ken. "Eucalyptus rubida". Royal Botanic Garden Sydney. Retrieved 16 December 2019.
  4. "Eucalyptus rubida". Royal Botanic Gardens Victoria. Retrieved 16 December 2019.
  5. 1 2 Chippendale, George M. "Eucalyptus rubida". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 16 December 2019.
  6. "Eucalyptus rubida". APNI. Retrieved 16 December 2019.
  7. Deane, Henry; Maiden, Joseph (1899). "Observations on the eucalypts of New South Wales, Part V". Proceedings of the Linnean Society of New South Wales. 24 (3): 456–458. Retrieved 16 December 2019.
  8. Johnson, Lawrence A.S.; Hill, Kenneth D. (1991). "Systematic studies in the eucalypts - 3. New taxa in Eucalyptus (Myrtaceae)". Telopea. 4 (239–240).
  9. "Eucalyptus rubida subsp. barbigerorum". Australian Plant Census. Retrieved 16 December 2019.
  10. 1 2 "Eucalyptus rubida subsp. barbigerorum". Euclid: Centre for Australian National Biodiversity Research. Retrieved 16 December 2019.
  11. "Eucalyptus rubida subsp. rubida". Australian Plant Census. Retrieved 16 December 2019.
  12. "Approved Conservation Advice for Eucalyptus rubida subsp. barbigerorum" (PDF). Qustralian Government Department of the Environment. Retrieved 16 December 2019.