Eucalyptus captiosa

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Eucalyptus captiosa
Eucalyptus captiosa habit.jpg
Eucalyptus captiosa near Ravensthorpe
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. captiosa
Binomial name
Eucalyptus captiosa

Eucalyptus captiosa is a species of mallee that is endemic to the south-west of Western Australia. It has smooth bark, lance-shaped adult leaves, groups of three or seven, slightly ribbed flower buds arranged in leaf axils, pale yellow flowers and cup shaped fruit.

Contents

buds and flowers Eucalyptus captiosa buds.jpg
buds and flowers
fruit Eucalyptus captiosa fruit.jpg
fruit

Description

Eucalyptus captiosa is a mallee or mallet that typically grows to a height of 1–4 m (3 ft 3 in–13 ft 1 in) and has smooth grey, creamy white or coppery bark, sometimes with ribbons of partly shed bark. Young plants and coppice regrowth have oblong, egg-shaped or lance-shaped leaves 60–120 mm (2.4–4.7 in) long and 20–37 mm (0.79–1.46 in) wide. The adult leaves are thick, linear to narrow elliptic, 40–88 mm (1.6–3.5 in) long and 5–13 mm (0.20–0.51 in) wide on a petiole 5–15 mm (0.20–0.59 in) long. The flower buds are arranged in groups of three or seven in leaf axils on an unbranched peduncle 8–15 mm (0.31–0.59 in) long, the individual buds on a pedicel 2–6 mm (0.079–0.236 in) long. Mature buds are pear-shaped to oval, 13–19 mm (0.51–0.75 in) long and 5–7 mm (0.20–0.28 in) wide, usually ribbed and with a beaked operculum. Flowering mainly occurs from July to November and the flowers are cream-coloured to pale yellow. The fruit is a woody, cylindrical to barrel-shaped or cup-shaped capsule 8–15 mm (0.31–0.59 in) long and 8–11 mm (0.31–0.43 in) wide on a pedicel usually 2–7 mm (0.079–0.276 in) long. [2] [3] [4]

Taxonomy and naming

Eucalyptus captiosa was first formally described in 1993 by Ian Brooker and Stephen Hopper and the description was published in the journal Nuytsia from a specimen near Jerramungup. [5] The specific epithet (captiosa) is a word Latin meaning "deceptive", [6] referring to the fine leaves, which are very different from those of the related E. incrassata . [3]

Distribution and habitat

This eucalypt grow in sandy and gravelly soils in heath between Tambellup and Jerramungup in the Avon Wheatbelt, Esperance Plains and Mallee biogeographic regions. [2] [3] [4]

Conservation status

Eucalyptus captiosa is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [4]

See also

Related Research Articles

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

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

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Eucalyptus obesa, commonly known as the Ninety Mile Tank mallee, is a species of mallee that is endemic to Western Australia. It has smooth, greyish to pale brown bark, usually lance-shaped adult leaves, flower buds in groups of between eleven and fifteen, creamy white flowers and shortened spherical to hemispherical fruit.

Eucalyptus olivina is a species of mallee or a tree that is endemic to Western Australia. It has smooth greyish bark, linear to narrow lance-shaped adult leaves, flower buds in groups of seven or nine, creamy white flowers and short barrel-shaped to cup-shaped fruit.

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

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

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

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Eucalyptus thamnoides is a species of mallee that is endemic to south western Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, cream-coloured to pale yellow flowers and cup-shaped, conical or bell-shaped fruit.

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

Eucalyptus densa is a species of mallee or mallet that is endemic to Western Australia. It has smooth greyish bark that is shed in curly strips, linear to narrow lance-shaped adult leaves, long, spindle-shaped flower buds in groups of seven or nine, pale yellow or lemon-coloured flowers and conical, cylindrical or barrel-shaped fruit.

Eucalyptus frenchiana is a species of mallet that is endemic to Western Australia. It has smooth bark, narrow lance-shaped, glossy green adult leaves, ribbed flower buds in groups of three, white flowers and ribbed, conical to cup-shaped fruit.

Eucalyptus × missilis, commonly known as bullet bush, is a species of mallee that is endemic to a small area on the south coast of Western Australia. It has smooth bark, egg-shaped to lance-shaped adult leaves, flower buds in groups of between seven and fifteen, pale yellow flowers and cup-shaped to cylindrical fruit. It is thought to be a hybrid between E. cornuta and E. angulosa that occur in the same area.

References

  1. "Eucalyptus captiosa". Australian Plant Census. Retrieved 16 April 2019.
  2. 1 2 "Eucalyptus captiosa". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  3. 1 2 3 Brooker, M. Ian; Hopper, Stephen D. (1993). "New series, subseries, species and subspecies of Eucalyptus (Myrtaceae) from Western Australian and from South Australia". Nuytsia. 9 (1): 55–57. Retrieved 16 April 2019.
  4. 1 2 3 "Eucalyptus captiosa". FloraBase . Western Australian Government Department of Parks and Wildlife.
  5. "Eucalyptus captiosa". APNI. Retrieved 16 April 2019.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 476.