Eucalyptus globoidea

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White stringybark
Eucalyptus globoidea (foliage, flowers and fruits).jpg
Foliage, flowers and fruits of Eucalyptus globoidea in the ANBG
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. globoidea
Binomial name
Eucalyptus globoidea
Synonyms [1]
  • Eucalyptus oblongaDC. var. oblonga
  • Eucalyptus globoideaBlakely var. globoidea
  • Eucalyptus oblongaDC.
  • Eucalyptus deformisBlakely
  • Eucalyptus yangouraBlakely
  • Eucalyptus oblonga var. rugulosaBlakely
  • Eucalyptus globoidea var. subsphaericaBlakely
  • Eucalyptus oblongaDC. subsp. oblonga (nom. inval.)

Eucalyptus globoidea, commonly known as the white stringybark, [2] is a tree that is endemic to near-coastal areas of south-eastern Australia. It has rough, stringy bark, often furrowed on the trunk, glossy, lance-shaped to egg-shaped, often curved leaves, oval to spindle-shaped green to yellowish flower buds, white flowers and small, more or less spherical to hemispherical fruit.

Contents

Description

Eucalyptus globoidea is a tree that grows to a height of 30–40 metres (98–131 ft) with rough bark to the thinnest branches. The bark is grey to reddish brown and stringy, often furrowed on the trunk. The leaves on young trees are glossy green, a lighter shade on the lower side, egg-shaped to broadly lance-shaped 40–100 mm (2–4 in) long, 20–45 mm (0.8–2 in) wide and wavy. Adult leaves are egg-shaped to lance-shaped, often curved, glossy green on both sides, 70–135 mm (3–5 in) long and 12–40 mm (0.5–2 in) wide. The flowers are arranged in groups of mostly between eleven and fifteen on an angular or flattened peduncle 4–10 mm (0.2–0.4 in) long, individual flowers on a cylindrical pedicel up to 2 mm (0.08 in) long. The mature buds are green to yellowish, oval to spindle-shaped, 5–7 mm (0.2–0.3 in) long and 3–4 mm (0.1–0.2 in) wide. The operculum is cone-shaped and about as long and wide as the flower cup. The stamens are white. Flowering occurs from July to February but mostly from September to January. The fruit is a globe-shaped to hemispherical capsule, 4–7 mm (0.2–0.3 in) long and 6–9 mm (0.2–0.4 in) wide. [2] [3] [4] [5]

Taxonomy and naming

Eucalyptus globoidea was first formally described in 1927 by William Blakely who published the description in Journal and Proceedings of the Royal Society of New South Wales . [6] The specific epithet (globoidea) is derived from the Latin word globoideus meaning "globoid", referring to the shape of the fruit. [5]

Distribution and habitat

White stringbark grows in forest and woodland on hills and slopes on the coast and nearby tablelands, south from Woolgoolga in New South Wales to near Melbourne in Victoria.

Globoidnan A is a lignan found in E. globoidea. This molecule has been found to inhibit the action of HIV integrase, [7] an enzyme which is responsible for the introduction of HIV viral RNA into a host's cellular DNA.

Related Research Articles

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

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

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

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

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

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

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

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

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Eucalyptus × conjuncta is a species of flowering plant that is endemic to a small area of New South Wales. It is a tree with rough stringy bark, lance-shaped adult leaves, flower buds in groups of eleven or more, white flowers and cup-shaped or hemispherical fruit. It is considered to be a stabilised hybrid between E. eugenioides and E. sparsifolia.

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

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

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

Eucalyptus mckieana, commonly known as McKie's stringybark, is a species of tree that is endemic to New South Wales. It has rough, stringy bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped, barrel-shaped or hemispherical fruit.

Eucalyptus quinniorum, commonly known as monkey gum, is a species of mallee or a small to medium-sized tree that is endemic to northern New South Wales. It has smooth bark with persistent, stringy bark near the base, linear to narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical to cylindrical fruit.

Eucalyptus imitans, commonly known as the Illawarra stringybark, is a species of small tree that is endemic to New South Wales. It has rough, stringy, greyish bark on the trunk and larger branches, lance-shaped, elliptic to egg-shaped or curved adult leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit. It is found on near-coastal tablelands inland from the south coast.

Eucalyptus carolaniae is a species of small to medium-sized tree that is endemic to a small area of Victoria. It has thick, rough, fibrous bark on the trunk grading to thin finely furrowed bark on the branches. It has glossy green, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cylindrical to oval fruit.

Eucalyptus longissima is a species of mallee or small tree that is endemic to the south-west of Western Australia. It has rough, fibrous or stringy bark on the trunk, smooth greyish brown bark above, glossy green, lance-shaped adult leaves, flower buds in group of between seven and thirteen, white flowers and shortened spherical fruit.

References

  1. 1 2 "Eucalyptus globoidea". APNI. Retrieved 16 February 2019.
  2. 1 2 Hill, Ken. "Eucalyptus globoidea". Royal Botanic Garden Sydney. Retrieved 17 February 2019.
  3. ↑ Chippendale, George McCartney. "Eucalyptus globoidea". Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 17 February 2019.
  4. ↑ Brooker, M. Ian; Slee, Andrew V. "Eucalyptus globoidea". Royal Botanic Gardens Victoria. Retrieved 17 February 2019.
  5. 1 2 "Eucalyptus globoidea". Centre for Australian National Biodiversity Research. Retrieved 2 June 2020.
  6. ↑ "Eucalyptus globoidea". APNI. Retrieved 16 February 2019.
  7. ↑ Ovenden SP, Yu J, Wan SS, et al. (2004). "Globoidnan A: a lignan from Eucalyptus globoidea inhibits HIV integrase". Phytochemistry . 65 (24): 3255–9. doi:10.1016/j.phytochem.2004.10.006. PMID   15561191.
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