Eucalyptus gunnii

Source: Wikipedia, the free encyclopedia.

Cider gum
Foliage and flowers
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. gunnii
Binomial name
Eucalyptus gunnii
Subspecies
Distribution

Eucalyptus gunnii, commonly known as cider gum,[5] is a species of large tree in the flowering plant family Myrtaceae. It is endemic to the island of Tasmania, Australia. It has mostly smooth bark, lance-shaped to egg-shaped adult leaves, flower buds in groups of three, white flowers and cylindrical to barrel-shaped fruit.

Description

Eucalyptus gunnii is a tree that typically grows to a height of 35 m (115 ft)

coppice regrowth have sessile leaves arranged in opposite pairs. Juvenile stems can be rounded or square in cross section.[7] The juvenile leaves are heart-shaped to more or less round, greyish green or glaucous, 13–45 mm (0.51–1.77 in) long and 17–40 mm (0.67–1.57 in) wide. Adult leaves are arranged alternately, lance-shaped to egg-shaped, the same dull greyish to bluish green on both sides, 40–90 mm (1.6–3.5 in) long and 12–35 mm (0.47–1.38 in) wide on a petiole
9–23 mm (0.35–0.91 in) long.

The flowers are arranged in leaf

capsule 5–9 mm (0.20–0.35 in) long and 5–7 mm (0.20–0.28 in) wide with the valves near rim level or enclosed.[5][8]

Taxonomy and naming

Eucalyptus gunnii was first formally described in 1844 by the British botanist Joseph Dalton Hooker in the London Journal of Botany. The type material was collected "on the elevated tablelands of the interior of Tasmania, especially in the neighborhood of the lakes" by Ronald Campbell Gunn.[9][10] The specific epithet honours the collector of the type material.[5]

Rapid Bay districts of South Australia it is known as "bastard white gum", occasionally as "yellow gum." Near Bombala, New South Wales two varieties go by the names of "flooded or bastard gum" and "red gum", although the species only occurs in Tasmania.[11]

Distribution and habitat

Cider gum is native to woodland in Tasmania, where it occurs on the plains and slopes of the

dolerite mountains at altitudes up to about 1,100 m (3,600 ft), with isolated occurrences south of Hobart.[8][12][13] It has been introduced to New Zealand and parts of the Caucasus.[14]

Use in horticulture

This plant has gained the

ornamental tree across the British Isles and some parts of western Europe.[17] Fast-growing, it will produce a tree up to 37 m (121 ft) tall when mature,[18]
with growth rates of up to 1.5 m (4 ft 11 in), rarely 2 m (6 ft 7 in), per year.

Uses

The fragrant leaves give off essential oils when they are creased or burned, which are used in different forms (floral composition, infusion, tincture, oil, etc) to treat many respiratory diseases, rheumatism, migraines, fatigue and as antiseptic.[19]

The indigenous people of Tasmania used the sap of the tree to produce a

fermented beverage called way-a-linah.[20]

Gallery

  • Juvenile foliage of the cultivar 'Silver Drop'
    Juvenile foliage of the cultivar 'Silver Drop'
  • Given its rapid growth, it is better to plant E. gunnii at a safe distance from homes
    Given its rapid growth, it is better to plant E. gunnii at a safe distance from homes
  • Young specimen in Maranoa Gardens
    Young specimen in Maranoa Gardens

References

  1. doi:10.2305/IUCN.UK.2019-3.RLTS.T133380212A133380214.en
    . Retrieved 1 April 2023.
  2. ^ "Eucalyptus gunnii". Australian Plant Census. Retrieved 23 July 2019.
  3. ^ "Eucalyptus gunnii subsp. divaricata". Australian Plant Census. Retrieved 23 July 2019.
  4. ^ "Eucalyptus gunnii subsp. gunnii". Australian Plant Census. Retrieved 23 July 2019.
  5. ^ a b c "Eucalyptus gunnii". Euclid: Centre for Australian National Biodiversity Research. Retrieved 2 June 2020.
  6. ISBN 978-1-5272-2630-2
    .
  7. ^ "Eucalyptus gunnii". apps.lucidcentral.org. Retrieved 11 December 2021.
  8. ^ a b "Eucalyptus gunnii". Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 24 July 2019.
  9. ^ "Eucalyptus gunnii". APNI. Retrieved 23 July 2019.
  10. ^ Hooker, Joseph Dalton (1844). Hooker, William Jackson (ed.). "Note of the Cider Tree". London Journal of Botany. 3: 499–501. Retrieved 24 July 2019.
  11. ^ Maiden, Joseph (1889). The useful native plants of Australia (including Tasmania). Sydney: Turner and Henderson. p. 27. Retrieved 24 July 2019.
  12. ISBN 0-646-43088-2
    . pp. 98
  13. ^ Brooker, K. (1996). Eucalyptus. An illustrated guide to identification. Reed Books, Melbourne
  14. ^ "Eucalyptus gunnii Hook.f." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 1 April 2023.
  15. ^ "Eucalyptus gunnii AGM". Royal Horticultural Society. Retrieved 19 June 2020.
  16. ^ "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 37. Retrieved 18 February 2018.
  17. ^ Brooker, M. (1983). A Key to Eucalypts in Britain and Ireland. Forestry Commission Booklet 50.
  18. ^ Tree Register of the British Isles
  19. ISBN 978-84-282-1400-1
  20. S2CID 221536063
    .
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