Eucalyptus crispata

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Yandanooka mallee
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. crispata
Binomial name
Eucalyptus crispata

Eucalyptus crispata, commonly known as the Yandanooka mallee, [2] is a species of tall mallee that is endemic to a small area on the east coast of Western Australia. It has a stocking of rough bark near the base of its trunk, smooth grey bark above, lance-shaped adult leaves, flower buds in groups of between nine and eleven, whitish to yellowish cream flowers and cup-shaped, barrel-shaped or hemispherical to cylindrical fruit.

Contents

Description

Eucalyptus crispata is a spreading or erect mallee that typically grows to a height of 3–7 m (9.8–23.0 ft) and forms a lignotuber. It has smooth grey bark on the branches and upper trunk and a stocking of up to 1 m (3 ft 3 in) of rough peeling flakes of darker grey bark near the base. Its adult leaves are the same colour on both sides, lance-shaped, 15–125 mm (0.59–4.92 in) long and 10–20 mm (0.39–0.79 in) wide on a petiole 8–25 mm (0.31–0.98 in) long. The flower buds are arranged in groups of nine, eleven or thirteen in leaf axils on an unbranched peduncle 7–16 mm (0.28–0.63 in) long, the individual buds on a pedicel 2–4 mm (0.079–0.157 in) long. Mature buds are spindle-shaped, 9–12 mm (0.35–0.47 in) long and 3–4 mm (0.12–0.16 in) wide with a cylindrical to conical operculum. Flowering occurs between March and June and the flowers are whitish to yellowish cream. The fruit is a woody barrel-shaped, cup-shaped, conical or cylindrical capsule 5–8 mm (0.20–0.31 in) long and 4–6 mm (0.16–0.24 in) wide on a pedicel 1–4 mm (0.039–0.157 in) long with the valves enclosed below the rim. [2] [3] [4] [5]

Taxonomy and naming

Eucalyptus crispata was first formally described by the botanists Ian Brooker and Stephen Hopper in 1991. The description was published in the journal Nuytsia from a type specimen they collected near Yandanooka in 1986. [4] [6] It belongs to Eucalyptus subgenus Symphyomyrtus section Bisectae subsection Glandulosae because it has bisected cotyledons and buds with a scarred operculum. [3] The specific epithet (crispata) is derived from the latin word crispus meaning "curly", [7] in reference to the curled bark. [3]

Distribution

Yandanooka mallee is found in clumps among lateritic breakaways and hills in the western Wheatbelt region of Western Australia between Dandaragan, Carnamah and Three Springs where it grows in gravelly sandy-loam soils. [2] Overall the species has a range of approximately 80 km (50 mi) with an estimated population of 85 plants in the wild, confined to separate populations. [5] It is found in small stands among low mallee woodlands. Associated species include Eucalyptus arachnaea subsp. arachnaea , E. accedens , E. wandoo , Santalum acuminatum , Allocasuarina campestris and various species of Melaleuca . [5]

Conservation status

This eucalypt is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). [2] The main threats to the species include inappropriate fire regimes, dieback, grazing by livestock and land clearing. [5]

See also

Related Research Articles

Eucalyptus zopherophloia, commonly known as the blackbutt mallee, is a species of spreading mallee that is endemic to an area on the west coast of Western Australia. It has rough bark over part or all of the trunk, smooth grey bark above, narrow lance-shaped leaves, flower buds in groups of nine or eleven, creamy white flowers and conical fruit.

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

Eucalyptus abdita is a species of mallee with smooth grey bark and cone-shaped to barrel-shaped fuit, that is native to disjunct areas to the north and north-east of Perth, Western Australia.

Eucalyptus dolorosa, commonly known as the Mount Misery mallee or Dandaragan mallee, is a species of eucalypt that is endemic to Western Australia. It is a mallee with a short skirt of rough flaky bark at the base of the trunk, smooth pale greyish brown above, lance-shaped to curved adult leaves, flowr buds in groups of seven, white flowers and cup-shaped to spherical fruit.

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

Eucalyptus arachnaea, commonly known as the black-stemmed mallee, is a mallee or tree that is endemic to Western Australia. It has rough, stringy bark, lance-shaped leaves and white flowers in groups of up to thirteen.

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

Eucalyptus capillosa, commonly known as wheatbelt wandoo, or mallee wandoo, is a species of tree or mallee that is endemic to Western Australia. It has smooth, grey bark, lance-shaped to elliptic adult leaves, spindle-shaped flower buds in groups of nine to thirteen, white flowers and barrel-shaped to cylindrical fruit.

Eucalyptus famelica is a species of mallee that is endemic to Western Australia. It has smooth grey and pale brown bark, sometimes with thin, rough, fibrous bark near the base of the trunk on larger plants. The adult leaves are lance-shaped, the flower buds are arranged in groups of seven, the flowers are creamy white and the fruit is cup-shaped to cylindrical.

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

Eucalyptus flavida, commonly known as yellow-flowered mallee, is a species of mallee that is endemic to Western Australia. It has smooth greyish bark, sometimes with rough, flaking brownish bark at the base, lance-shaped adult leaves, long, elongated, tapering flower buds in groups of nine or eleven, yellow flowers and cylindrical or barrel-shaped fruit.

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

Eucalyptus hebetifolia is a species of mallee that is endemic to southern Western Australia. It has smooth grey and brownish bark with loose ribbons of bark near the base, lance-shaped adult leaves, flower buds in groups of up to thirteen, creamy white flowers and conical to barrel-shaped fruit.

Eucalyptus histophylla is a species of mallee or small tree that is endemic to southern Western Australia. It has smooth bark, often with ribbons of shed bark, linear to narrow lance-shaped adult leaves, flower buds arranged in groups in leaf axils, white flowers and cylindrical to barrel-shaped or conical fruit.

Eucalyptus litorea, commonly known as saline mallee, is a species of mallee that is endemic to a small area on the southern coast of Western Australia. It has hard, rough grey bark on the trunk, smooth grey bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cylindrical or barrel-shaped fruit.

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

Eucalyptus luteola is a species of mallee that is endemic to a small area of Western Australia. It has smooth grey bark with rough greyish ribbons near the base, linear to narrow lance-shaped adult leaves, flower buds in groups of eleven to thirteen, lemon-coloured flowers and cylindrical to barrel-shaped fruit.

Eucalyptus melanophitra is a species of mallet that is endemic to a restricted area of Western Australia. It has rough, flaky grey bark on the trunk, smooth grey bark above, narrow lance-shaped adult leaves, flower buds in groups of nine or eleven, pale yellow flowers and cylindrical to barrel-shaped fruit.

Eucalyptus microschema is a species of small, shrubby mallee that is endemic to the southwest of Western Australia. It has smooth, silvery grey bark, linear adult leaves, flower buds in groups of nine or eleven, white flowers and short, barrel-shaped fruit. It is restricted to a small area near Newdegate.

Eucalyptus nigrifunda, commonly known as desert wandoo, is a species of tree that is endemic to a small area in central Western Australia. It has smooth reddish brown bark with some rough, flaky black bark near the base of the trunk, lance-shaped adult leaves, flower buds in groups of nine, white flowers and cylindrical to barrel-shaped fruit.

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

Eucalyptus phaenophylla, also known as common southern mallee, is a species of mallee that is endemic to Western Australia. It has smooth bark, linear to narrow lance-shaped or narrow elliptical adult leaves, flower buds in groups of up to thirteen, pale lemon-coloured flowers and barrel-shaped, cylindrical or conical fruit.

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

Eucalyptus sporadica, commonly known as the Burngup mallee, is a species of mallee that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, yellowish flowers and down-turned, conical to cylindrical fruit.

Eucalyptus subangusta is a species of tree, mallee or mallet that is endemic to the southwest of Western Australia. It has smooth bark, narrow lance-shaped leaves, flower buds in groups of up to nineteen, white flowers and cup-shaped to barrel-shaped fruit.

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

Eucalyptus clivicola, commonly known as green mallet, is a species of eucalypt that is endemic to Western Australia. It has smooth bark, linear to lance-shaped adult leaves, flower buds in groups of between nine and thirteen, pale yellow flowers and barrel-shaped, conical or cylindrical 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 × 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 crispata". Australian Plant Census. Retrieved 17 May 2019.
  2. 1 2 3 4 "Eucalyptus crispata". FloraBase . Western Australian Government Department of Parks and Wildlife.
  3. 1 2 3 "Eucalyptus crispata". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  4. 1 2 Brooker, M. Ian; Hopper, Stephen d. (1991). "A taxonomic revision of Eucalyptus wandoo, E. redunca and allied species (Eucalyptus series Levispermae Maiden - Myrtaceae) in Western Australia". Nuytsia. 3 (1): 100–104. Retrieved 17 May 2019.
  5. 1 2 3 4 "Approved Conservation Advice for Eucalyptus crispata (Yandanooka Mallee)" (PDF). Australian Government Department of the Environment. Retrieved 17 May 2019.
  6. ↑ "Eucalyptus crispata". APNI. Retrieved 17 May 2019.
  7. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 245.
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