Eucalyptus bensonii

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Benson's stringybark
Eucalyptus bensonii.jpg
Eucalyptus bensonii in the ANBG
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. bensonii
Binomial name
Eucalyptus bensonii

Eucalyptus bensonii, commonly known as Benson's stringybark, [3] is a small tree or mallee that is endemic to New South Wales. It has rough grey or brown stringy bark on the trunk and larger branches, smooth bark on the thinnest branches, broadly lance-shaped to egg-shaped adult leaves, flower buds arranged in groups of seven, nine or eleven, white flowers and cup-shaped or hemispherical fruit in clusters. [4]

Contents

Description

Eucalyptus bensonii is a mallee or a small tree that typically grows to a height of 8 metres (26 ft) and forms a lignotuber. It has rough, grey or brown stringy bark on part or all of the trunak and larger branches, smooth grey bark above. Leaves on young plants and on coppice regrowth are broadly egg-shaped, 40–70 mm (2–3 in) long, 30–40 mm (1–2 in) wide on a petiole 5–7 mm (0.2–0.3 in) long. The adult leaves are arranged alternately, broadly lance-shaped or curved, 60–120 mm (2–5 in) long, 19–37 mm (0.7–1 in) wide with a petiole 10–20 mm (0.4–0.8 in) long, and the same glossy green on both sides. The flowers are borne in groups of seven or nine, rarely eleven, in leaf axils on an angled or flattened peduncle 4–12 mm (0.2–0.5 in) long, the individual flowers lacking a pedicel. Mature buds are oblong, 5–10 mm (0.2–0.4 in) long and 3–4 mm (0.1–0.2 in) wide with a conical to rounded operculum. Flowering occurs from November to January and the flowers are white. The fruit that follows are woody, hemispherical to shortened spheres 5 to 7 mm (0.20 to 0.28 in) long and 8 to 12 mm (0.31 to 0.47 in) wide in clusters. [3] [5] [6]

Taxonomy and naming

Eucalyptus bensonii was first formally described in 1990 by Lawrie Johnson and Ken Hill near Mount Boonbourwa which is near Kandos. The description was published in the journal Telopea . [7] [6] The specific epithet (bensonii) honours Douglas Howard Benson, an ecologist with the National Herbarium of New South Wales. [6]

Distribution and habitat

Benson's stringybark is only known from isolated occurrences in the Wollemi National Park between Rylstone and Glen Davis where it grows in heath on highland plateau areas.

Related Research Articles

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

Eucalyptus baxteri, commonly known as brown stringybark, is a medium-sized tree that is endemic the south-east of Australia. It has rough, stringy bark to the thinnest branches, lance-shaped or curved adult leaves, green to yellow flower buds is groups of between nine and fifteen and cup-shaped or hemispherical fruit.

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

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

Eucalyptus acmenoides, commonly known as white mahogany or barayly, is a tree that is endemic to eastern Australia. It is a large tree with grey to reddish brown, stringy bark, lance-shaped leaves, oval to spindle-shaped buds and more or less hemispherical fruits. The two sides of adult leaves are very different shades of green.

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

Eucalyptus camphora, commonly known as swamp gum is a flowering plant that is endemic to south-eastern Australia. It is a species of small to medium-sized tree with smooth bark, sometimes rough at the base, broadly lance-shaped to egg-shaped or elliptic adult leaves, flower buds in groups of seven, white flowers and conical fruit. There are two subspecies, subspecies camphora, commonly known as broad-leaved sally or swamp gum and subspecies humeana, commonly known as mountain swamp gum.

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

Eucalyptus tindaliae, commonly known as Tindal's stringybark, is a species of tree that is endemic to coastal eastern Australia. It has rough, stringy bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit.

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

Eucalyptus ligustrina, commonly known as the privet-leaved stringybark, is a species of shrub, mallee or small tree that is endemic to New South Wales. It has rough, stringy bark, lance-shaped to egg-shaped adult leaves, flower buds in groups of between seven and fifteen, white flowers and hemispherical or shortened spherical fruit.

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

Eucalyptus expressa, commonly known as the Wollemi stringybark, is a recently discovered Australian tree species. It has rough, fibrous stringybark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of between seven and twenty four and hemispherical to shortened spherical fruit with the valves extending well beyond the rim of the fruit.

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

Eucalyptus eugenioides, commonly known as the thin-leaved stringybark or white stringybark, is a species of tree endemic to eastern Australia. It is a small to medium-sized tree with rough stringy bark, lance-shaped to curved adult leaves, Flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit.

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

Eucalyptus tenella, commonly known as narrow-leaved stringybark, is a species of small to medium-sized tree that is endemic to New South Wales. It has stringy bark, narrow lance-shaped to linear leaves, flower buds in group of seven to fifteen, white flowers and hemispherical fruit.

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

Eucalyptus serraensis, commonly known as the Grampians stringybark, is a species of small tree or mallee that is endemic to the Grampians in Victoria, Australia. It has rough, stringy, fibrous or flaky bark on the trunk and sometimes also the branches, smooth bark above, lance-shaped to egg-shaped or round adult leaves, sessile flower buds in groups of three or seven, white flowers and hemispherical or cup-shaped fruit.

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

Eucalyptus cameronii, commonly known as the diehard stringybark is a flowering plant that is endemic to eastern Australia. It is a small to medium-sized tree with rough, stringy bark from the trunk to the small branches, lance-shaped to curved adult leaves, flowers buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or more or less spherical fruit. It mainly grows on the eastern side of the Northern Tablelands in New South Wales.

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 williamsiana</i> Species of eucalyptus

Eucalyptus williamsiana, commonly known as the large-leaved stringybark, is a species of small to medium-sized tree that is endemic to northern New South Wales. It has rough, stringy bark on the trunk and branches, broadly lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.

Eucalyptus vicina, commonly known as the Manara Hills red gum, is a species of mallee in the family Myrtaceae and is endemic to western New South Wales. It has smooth bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus boliviana, commonly known as Bolivia Hill stringybark or Bolivia stringybark is a shrub or a mallee, sometimes a small tree and is endemic to a small area in northern New South Wales. It is a stringybark with four-sides stems, broadly lance-shaped adult leaves, flower buds arranged in groups of seven, yellow flowers and hemispherical to broadly funnel-shaped fruit.

<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 latisinensis, commonly known as white mahogany, is a species of tree that is endemic to Queensland. It has rough, fibrous to stringy bark, lance-shaped to curved adult leaves, flower buds in groups of seven to eleven or more, white flowers and shortened spherical to hemispherical fruit.

References

  1. Fensham, R., Laffineur, B. & Collingwood, T. 2019. Eucalyptus bensonii. The IUCN Red List of Threatened Species 2019: e.T133378065A133378067. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133378065A133378067.en. Downloaded on 20 September 2021.
  2. "Eucalyptus bensonii". Australian Plant Census. Retrieved 18 March 2019.
  3. 1 2 "Eucalyptus bensonii Benson's stringybark". Euclid: Centre for Australian National Biodiversity Research. Retrieved 17 March 2019.
  4. K.Hill. "New South Wales Flora Online: Eucalyptus bensonii". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  5. Hill, Ken. "Eucalyptus bensonii". Royal Botanic Garden Sydney. Retrieved 18 March 2019.
  6. 1 2 3 Johnson, Lawrence A.S.; Hill, Kenneth D. (26 September 1990). "New taxa and combinations in Eucalyptus and Angophora (Myrtaceae)". Telopea. 4 (1): 91–93. doi: 10.7751/telopea19904916 .
  7. "Eucalyptus bensonii". APNI. Retrieved 18 March 2019.