Eucalyptus beaniana

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Bean's ironbark
Eucalyptus beaniana habit.jpg
Eucalyptus beaniana in Isla Gorge National Park
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. beaniana
Binomial name
Eucalyptus beaniana

Eucalyptus beaniana , commonly known as the Bean's ironbark, [3] is a small tree that is endemic to Queensland. It has rough, furrowed "ironbark" on the trunk and branches, dull green to bluish, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to conical fruit. It is only known from four locations in southern inland Queensland.

Contents

flower buds Eucalyptus beaniana buds.jpg
flower buds

Description

Eucalyptus beaniana is a tree that grows to a height of 10–15 mm (0.4–0.6 in) and forms a lignotuber. It has hard black "ironbark" on its trunk and larger branches. Branches thinner than about 5 mm (0.2 in) have smooth, brownish white bark. Young plants and coppice regrowth have leaves that are arranged alternately, linear, 55–90 mm (2–4 in) long and 4–6 mm (0.16–0.24 in) wide on a short petiole. Adult leaves are the same dull green to bluish colour on both sides, lance-shaped to curved, 70–130 mm (3–5 in) long and 9–23 mm (0.4–0.9 in) wide on a petiole 10–25 mm (0.4–1 in) long. The flower buds are arranged in group of seven, mostly on the ends of the branches. The groups are on a branched peduncle 5–11 mm (0.2–0.4 in) long, the individual flowers on a pedicel 3–5 mm (0.12–0.20 in) long. Mature buds are club-shaped to spindle-shaped or more or less cylindrical, 4–7 mm (0.16–0.28 in) long and 2–4 mm (0.079–0.16 in) wide. The operculum is about as long as, or slightly shorter than the floral cup and blunt conical to rounded. Flowering has been recorded in September and the flowers are white. The fruit is a woody, cup-shaped to conical capsule 4–6 mm (0.16–0.24 in) long, 3–6 mm (0.1–0.2 in) wide on a pedicel 2–7 mm (0.079–0.28 in) long with the valves level or slightly protruding. [3] [4] [5] [6]

Eucalyptus beaniana is closely related to E. taurina , but can be distinguished by the linear juvenile leaves and by larger amount of smooth bark on the branches. [3]

Taxonomy and naming

Eucalyptus beaniana was first formally described by Ken Hill and Lawrie Johnson in 1991 in the journal Telopea from samples collected near the Isla Gorge lookout carpark by Johnson and Anthony Russell Bean in 1984. [7] The specific epithet (beaniana) honours Anthony Bean. [5] [8]

Distribution and habitat

Bean's ironbark is found growing in shallow and sandy soils as part of woodland communities along with numerous other eucalypt species, on quartzose and sandstone ridges. It is known from only four locations in south-east Queensland, in the Isla Gorge National Park, near Taroom, Cracow and Mundubbera. [4] [6]

Conservation

Eucalyptus beaniana is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and under the Queensland Government Nature Conservation Act 1992 . [3] [4]

See also

Related Research Articles

<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 dura</i> Species of eucalyptus

Eucalyptus dura is a species of small to medium sized tree that is endemic to south-eastern Queensland. It has rough, dark grey to black "ironbark", lance-shaped adult leaves, flower buds in groups of seven, white flowers and conical fruit.

Eucalyptus fracta is a species of tree or mallee that is endemic to a small area of New South Wales. It has hard, grey to black "ironbark" on the trunk and larger branches, smooth whitish bark above, lance-shaped adult leaves, flower buds in groups of seven, and cup-shaped fruit.

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

Eucalyptus prava, commonly known as orange gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped or hemispherical fruit.

Corymbia clandestina, commonly known as the Drummond Range bloodwood, is a species of small tree that is endemic to Queensland. It has rough, tessellated bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, white flowers and urn-shaped to barrel-shaped fruit.

Eucalyptus atrata, commonly known as the Herberton ironbark or blue-leaved ironbark, is a small tree that is endemic to Queensland. It has hard, black "ironbark" on the trunk and all but the thinnest branches, lance-shaped adult leaves, buds usually arranged in groups of seven, white flowers and cup-shaped to hemispherical fruit. It is characterised by the blue-grey, powdery bloom on its leaves and flower buds.

Eucalyptus corynodes is a species of tree that is endemic to Queensland. It has hard, dark grey "ironbark", lance-shaped to curved adult leaves, flower buds usually on a branching inflorescence, the buds in groups of seven, white flowers and barrel-shaped to cup-shaped fruit.

Eucalyptus decolor is a species of small to medium-sized tree that is endemic to Queensland. It has rough, hard, fissured "ironbark", lance-shaped to curved adult leaves that are distinctly paler on the lower surface, flower buds in groups of seven, white flowers and hemispherical to cup-shaped fruit.

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

Eucalyptus decorticans, commonly known as the gum-top ironbark, is a species of tree that is endemic to Queensland. It has rough, dark grey or black "ironbark" on the trunk and larger branches, smooth white bark on the thinner branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical, cup-shaped or barrel-shaped fruit.

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

Eucalyptus granitica, commonly known as the granite ironbark, is a species of tree that is endemic to Queensland. It has dark grey or black "ironbark" on the trunk and branches, glossy green, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to barrel-shaped fruit.

Eucalyptus melanoleuca, commonly known as yarraman ironbark or nanango ironbark, is a species of tree that is endemic to south-east Queensland. It has rough ironbark on the trunk and larger branches, smooth bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and barrel-shaped, to cup-shaped or conical fruit.

Eucalyptus paedoglauca, commonly known as the Mount Stuart ironbark, is a small to medium-sized tree that is endemic to a small area in Queensland. It has rough, dark ironbark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit. It is only known from a few hills near Townsville.

Eucalyptus persistens is a species of small tree that is endemic to Queensland. It has rough, dark grey bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped or barrel-shaped fruit.

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

Eucalyptus quadricostata, commonly known as the square-fruited ironbark, is a species of small to medium-sized ironbark that is endemic to Queensland. It has rough ironbark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit that are square in cross-section.

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

Eucalyptus rhombica is a small to medium-sized tree that is endemic to a small area of south-east Queensland. It has rough, ironbark on the trunk and larger branches, smooth bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped or conical fruit.

Eucalyptus sicilifolia is a species of small ironbark tree that is endemic to Queensland. It has dark ironbark on the trunk and branches, narrow lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to barrel-shaped fruit.

Eucalyptus suffulgens is a small to medium-sized tree that is endemic to Queensland. It has hard ironbark on the trunk and larger branches, smooth bark above, lance-shaped adult leaves, flower buds in groups of seven on the ends of branchlets, white flowers and barrel-shaped fruit.

Eucalyptus tholiformis is a species of tree that is endemic to a small area in Queensland. It has rough, deeply furrowed iron bark on the trunk and larger branches, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to funnel-shaped fruit.

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

Eucalyptus virens, commonly known as the shiny-leaved ironbark, is a species of small to medium-sized tree that is endemic to Queensland. It has hard ironbark on the trunk and branches, narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.

Eucalyptus farinosa is a species of small tree that is endemic to Queensland. It has hard, dark grey ironbark, egg-shaped to lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to barrel-shaped and ribbed fruit.

References

  1. ↑ Fensham, R., Laffineur, B. & Collingwood, T. 2019. Eucalyptus beaniana. The IUCN Red List of Threatened Species 2019: e.T133378055A133378057. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133378055A133378057.en. Downloaded on 20 September 2021.
  2. ↑ "Eucalyptus beaniana". Australian Plant Census. Retrieved 15 March 2019.
  3. 1 2 3 4 "Bean's ironbark – Eucalyptus beaniana". WetlandInfo. Queensland Government . Retrieved 26 October 2016.
  4. 1 2 3 "Approved Conservation Advice for Eucalyptus beaniana" (PDF). Department of Environment. Retrieved 26 October 2016.
  5. 1 2 Hill, Kenneth D.; Johnson, Lawrence A.S. (1991). "Systematic studies in the eucalypts - 4 New taxa in Eucalyptus (Myrtaceae)". Telopea. 4 (2): 330–332. doi: 10.7751/telopea19914932 .
  6. 1 2 "Eucalyptus beaniana Bean's ironbark". Euclid: Centre for Australian National Biodiversity Research. Retrieved 15 March 2019.
  7. ↑ "Eucalyptus beaniana". APNI. Retrieved 15 March 2019.
  8. ↑ "Bean, Anthony Russell (1957 - )". Australian National Herbarium. Retrieved 15 March 2019.
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