Eucalyptus orthostemon

Last updated

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

Eucalyptus orthostemon is a species of mallee that is endemic to the south-west of Western Australia. It has smooth coppery and greyish bark, linear adult leaves, oval to spindle-shaped buds in groups of seven, creamy white flowers and conical to cup-shaped fruit.

Contents

Description

Eucalyptus orthostemon is an upright, spreading mallee that typically grows to a height of 5 m (16 ft) and forms a lignotuber. It has smooth coppery and greyish to silvery bark. Adult leaves are the same shade of green on both sides, linear, 30–55 mm (1.2–2.2 in) long and 2–5 mm (0.079–0.197 in) wide on a petiole 1–4 mm (0.039–0.157 in) long. The flower buds are arranged in leaf axils in groups of five or seven a slightly flattened, unbranched peduncle 3–10 mm (0.12–0.39 in) long, the individual buds on pedicels 2–6 mm (0.079–0.236 in) long. Mature buds are oval to spindle-shaped, 9–14 mm (0.35–0.55 in) long and 3–5 mm (0.12–0.20 in) wide with a horn-shaped to conical operculum that is two or three times longer than the flower cup. Flowering occurs from January to February and the flowers are creamy white. The fruit is a woody, conical to cup-shaped capsule, 5–8 mm (0.20–0.31 in) long and 5–7 mm (0.20–0.28 in) wide with the valves near rim level. [2] [3] [4]

Taxonomy and naming

Eucalyptus orthostemon was first formally described in 2012 by Dean Nicolle and Ian Brooker from a specimen they collected between Yealering and Kulin in 2000. [2] [5] The specific epithet (orthostemon) is from ancient Greek, meaning "straight thread", referring to the stamens. [6]

Distribution and habitat

This eucalypt grows in saline saltbush flats, mostly between Moora and Wongan Hills in the Avon Wheatbelt, Esperance Plains, Jarrah Forest and Mallee biogeographic regions. [2] [3] [4]

Conservation

Eucalyptus orthostemon is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.

See also

Related Research Articles

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

Eucalyptus foecunda, commonly known as narrow-leaved red mallee, Fremantle mallee or coastal dune mallee, is a species of plant in the myrtle family that is endemic to Western Australia. It has rough bark on the trunk, smooth bark above, narrow lance-shaped adult leaves, flower buds in groups of nine or eleven, creamy white flowers and cup-shaped fruit. It was previously included with the more widespread Eucalyptus leptophylla.

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

Eucalyptus leptophylla, commonly known as the March mallee, slender-leaved red mallee or narrow-leaved red mallee, is a species of mallee that is endemic to inland Australia. It has smooth greyish bark, linear to narrow lance-shaped, oblong or curved adult leaves, flower buds in groups of between seven and thirteen, creamy white flowers and cup-shaped, barrel-shaped or hemispherical fruit.

Eucalyptus blaxellii, commonly known as the Howatharra mallee, is a mallee that is endemic to Western Australia. It has smooth bark, linear to narrow lance-shaped adult leaves, flower buds arranged in groups of seven, white flowers and cup-shaped to conical fruit.

Eucalyptus gypsophila, also known as the kopi mallee, is a species of mallee that is native to Western Australia and South Australia. It has rough, flaky bark on the lower part of the trunk, smooth light grey bark above, lance-shaped adult leaves, flower buds mostly in groups of between seven and eleven, creamy white flowers and conical to cylindrical fruit.

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

Eucalyptus insularis, commonly known as Twin Peak Island mallee, or North Twin Peak Island mallee, is a species of mallee that is endemic to a small area of southern Western Australia. It has mostly smooth bark, dull green, linear adult leaves, flower buds in group of between nine and twenty or more, white flowers and barrel-shaped fruit.

Eucalyptus kumarlensis is a species of tree that is endemic to a restricted area of Western Australia. It has smooth bark, linear to narrow, curved adult leaves, flower buds in groups of seven, nine or eleven, creamy white flowers and cup-shaped, conical or hemispherical fruit.

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

Eucalyptus latens, commonly known as narrow-leaved red mallee, is a species of mallee that is endemic to the south-west of Western Australia. It has smooth grey and coppery bark, linear to narrow lance-shaped adult leaves, flower buds in groups of seven to eleven or more, creamy white flowers and small barrel-shaped to shortened spherical fruit.

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

Eucalyptus obtusiflora, commonly known as Dongara mallee, is a species of mallee that is endemic to Western Australia. It has smooth greyish or brownish bark that is often imperfectly shed, lance-shaped to curved adult leaves, flower buds usually in groups of seven or nine, creamy white flowers and cup-shaped, conical or barrel-shaped 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.

Eucalyptus perangusta, commonly known as fine-leaved mallee, is a species of mallee that is endemic to a small area on the south coast of Western Australia. It has smooth bark, glossy green, linear leaves, flower buds in groups of seven or nine, creamy white flowers and short, barrel-shaped fruit.

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

Eucalyptus sargentii, commonly known as Salt River gum, is a species of mallet, mallee or small tree that is endemic to Western Australia. It has rough bark on part or all of the trunk, smooth bark above, linear to narrow lance-shaped leaves, flower buds in groups of seven, whitish to creamy yellow flowers and conical fruit.

Eucalyptus semota, commonly known as marymia mallee, is a species of mallee or small tree that is endemic to a small area in central Western Australia. It has rough, flaky to fibrous bark on the trunk, smooth grey or brown bark above, linear to narrow lance-shaped leaves, flower buds in groups of seven or nine, white flowers and conical to cup-shaped fruit.

Eucalyptus suggrandis is a species of mallee that is endemic to the southwest of Western Australia. It has smooth, shiny bark, linear to elliptical leaves, flower buds in groups of three or seven, creamy white flowers and cup-shaped to conical fruit.

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

Eucalyptus yalatensis, commonly known as the Yalata mallee, is a species of mallee or a shrub that is endemic to southern Australia. It has rough, fibrous or flaky bark on the stems, smooth bark above, lance-shaped adult leaves, flower buds mostly in groups of nine, creamy white or yellowish flowers and hemispherical to shortened spherical fruit.

Eucalyptus percostata, commonly known as the rib-capped mallee or Devils peak mallee, is a species of mallee that is endemic to South Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and cup-shaped to conical fruit. It is only known from a few locations in the Flinders Ranges.

Eucalyptus cuprea, commonly known as the mallee box, is a species of mallee that is endemic to the west coast of Western Australia. It has rough, flaky bark on the base of its trunk, smooth coppery-coloured bark above, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and conical to cup-shaped fruit.

Eucalyptus alipes is a mallet that is endemic to the south-west of Western Australia. It has smooth grey to light brown or bronze bark, linear to narrow elliptic leaves, oval to spindle-shaped buds with a long, narrow operculum and conical fruits.

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

Eucalyptus canescens, commonly known as the Ooldea Range mallee or Beadell's mallee, depending on subspecies, is a species of mallee that is endemic to southern Australia. It has rough bark from the base of the trunk to the thicker branches, smooth bark on the thin branches, egg-shaped to lance-shaped adult leaves, flower buds in groups of between seven and eleven, creamy white flowers and smooth cup-shaped to conical, and sometimes ribbed 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.

Eucalyptus proxima, commonly known as nodding mallee or red-flowered mallee, is a species of mallee that is endemic to a small area in the south-west of Western Australia. It has smooth greyish bark, lance-shaped adult leaves, flower buds in groups of seven, red to pink, sometimes yellowish flowers and conical to slightly bell-shaped fruit.

References

  1. "Eucalyptus orthostemon". Australian Plant Census. Retrieved 24 November 2019.
  2. 1 2 3 Nicolle, Dean; Brooker, M. Ian (2005). "Re-assessment of the saline-dwelling Eucalyptus spathulata complex (Myrtaceae) from southern Wetern Australia" (PDF). Nuytsia. 15 (3): 409–412. Retrieved 24 November 2019.
  3. 1 2 "Eucalyptus orthostemon". FloraBase . Western Australian Government Department of Parks and Wildlife.
  4. 1 2 "Eucalyptus orthostemon". Euclid: Centre for Australian National Biodiversity Research. Retrieved 24 November 2019.
  5. "Eucalyptus orthostemon". APNI. Retrieved 24 November 2019.
  6. Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 267. ISBN   9780958034180.