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''Eucalyptus decurva'', commonly known as the slender mallee, is a species of mallee that is endemic to the south-west of Western Australia. It has smooth whitish bark, lance-shaped to curved adult leaves, pendulous flower buds arranged in groups of seven, white flowers and pendulous, more or less spherical fruit.
Description
''Eucalyptus decurva'' is a mallee that typically grows to a height of and forms a lignotuber. The bark is smooth, white-gray, salmon to yellow-green and sometimes powdery. Young plants and coppice regrowth have dull greyish green leaves arranged in opposite pairs, oblong to elliptic or egg-shaped, long and wide. Adult leaves are arranged alternately, glossy green, lance-shaped to curved, long and wide on a petiole long. The flower buds are pendulous and arranged in leafaxil
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...
s in groups of seven on a peduncle Peduncle may refer to:
*Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed
*Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body
**Peduncle (art ...
long, the individual buds on a pedicel long. Mature buds are more or less cylindrical to pear-shaped, long and wide. Flowering occurs between April and October and the flowers are white to pale pink. The fruit is a pendulous, woody, more or less spherical capsule long and wide on a pedicel long.
Taxonomy and naming
''Eucalyptus decurva'' was first formally described in 1863 byFerdinand von Mueller
Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Vict ...
from a specimen collected by George Maxwell near the Porongurups
Porongurup National Park is a national park in the Great Southern region of Western Australia. It covers , and is southeast of Perth and north of Albany.
The park contains the Porongurup Range, which is the relic core of an ancient mount ...
and the description was published in '' Fragmenta phytographiae Australiae''. The specific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
(''decurva'') is a Latin word meaning "down-curved", referring to the flower buds.
Distribution and habitat
Slender mallee grows in sandy and lateritic soils in hilly coastal and near-coastal areas, mostly between theStirling Range
The Stirling Range or Koikyennuruff is a range of mountains and hills in the Great Southern region of Western Australia, south-east of Perth. It is over wide from west to east, stretching from the highway between Mount Barker and Cranb ...
and Esperance but with disjunct populations near Perth.
See also
* List of ''Eucalyptus'' speciesReferences
{{Taxonbar, from=Q15396854 Eucalypts of Western Australia decurva Myrtales of Australia Plants described in 1863 Taxa named by Ferdinand von Mueller Mallees (habit)