Eucalyptus eudesmioides

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Eucalyptus eudesmioides, commonly known as mallalie,[1] desert gum or mallabie[2] is a species of mallee that is endemic to Western Australia. It is a rounded, bushy mallee with smooth bark, egg-shaped to heart-shaped leaves arranged in opposite pairs, club-shaped flower buds arranged in groups of three, whitish flowers and cylindrical to barrel-shaped fruit.

File:Eucalyptus eudesmioides buds.jpg
flower buds and flowers
File:Eucalyptus eudesmioides fruit.jpg
fruit

Description

Eucalyptus eudesmioides is a mallee, sometimes a tree, that typically grows to Template:Cvt high, occasionally up to Template:Cvt but usually less than Template:Cvt, and forms a lignotuber. It usually has smooth white to grey or brownish bark, sometimes with a rough, fibrous grey to brown bark near the base of the trunk. Young plants and coppice regrowth have sessile, egg-shaped to heart-shaped leaves arranged in opposite pairs and Template:Cvt long, Template:Cvt wide. Adult leaves are also arranged in opposite pairs and are lance-shaped to curved, Template:Cvt long and Template:Cvt wide on a petiole Template:Cvt long. The flower buds are arranged in leaf axils in groups of three on a peduncle Template:Cvt long, the individual buds on a pedicel Template:Cvt long. Mature buds are club-shaped, Template:Cvt long and Template:Cvt wide with a rounded to flattened operculum, the stamens in bundles. Flowering occurs from February to May and the flowers are white. The fruit is a woody, cylindrical to barrel-shaped capsule Template:Cvt long and Template:Cvt wide with the valves at or near the level of the rim.[1][3][4][5]

Taxonomy and naming

Eucalyptus eudesmioides was first formally described in 1860 by the botanist Ferdinand von Mueller, initially as Eucalyptus eudesmoides in his book Fragmenta phytographiae Australiae.[6] The original name is an orthographical variant of E. eudesmioides.[7]

The specific epithet (eudesmioides) is a reference to the Eucalyptus subgenus Eudesmia.[4] The ending -oides is a Latin suffix meaning "likeness".[8]

Mallalie is the Noongar name for the species.[9]

Distribution and habitat

Mallalie occurs coastally and subcoastally from Script error: No such module "convert". north of Perth northwards to the Murchison River.[3] The range extends from Carnarvon in the Gascoyne south to Wongan Hills in the Wheatbelt region of Western Australia.[1] It grows in sandy soil on flat or low sloping areas in mallee woodland. It is one of the eucalypts identified in the Eurardy Reserve, a reserve that was established as a bush heritage property in 2011.[10]

Two subspecies, not yet formally described, are recognised by the Australian Plant Census:

  • Eucalyptus eudesmioides subsp. Pallida;[11]
  • Eucalyptus eudesmioides subsp. Selachiana.[12]

Conservation status

This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[1]

See also

References

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