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''Eucalyptus phenax'', commonly known as green dumosa mallee or white mallee, is a species of mallee that is endemic to southern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and cup-shaped to cylindrical fruit.
''Eucalyptus phenax'', commonly known as green dumosa mallee or white mallee, is a species of mallee that is endemic to southern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and cup-shaped to cylindrical fruit.
Description
''Eucalyptus phenax'' is a mallee or shrub that typically grows to a height of and forms a lignotuber. It has smooth, creamy grey bark that is shed in ribbons. Young plants and coppice regrowth have egg-shaped to lance-shaped leaves that are long and wide. Adult leaves are the same glossy green on both sides, lance-shaped, long and wide on a petiole long. The flower buds are 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, usually in groups of seven or nine on an unbranched 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 sessile or on pedicels up to long. Mature buds are cylindrical to oval, long and wide with a conical to rounded operculum. Flowering occurs between October and May and the flowers are white. The fruit is a woody, cup-shaped to cylindrical capsule long and wide.
Taxonomy and naming
''Eucalyptus phenax'' was first formally described in 1996 by Ian Brooker and Andrew Slee from material collected by Dean Nicolle near Tailem Bend in 1985. Thespecific 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 ...
(''phenax'') is an ancient Greek word meaning "imposter", referring to the fact that this species was previously known as ''E. anceps'', now a synonym
A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...
of '' E.rugosa''.
In 2000, Dean Nicolle described two subspecies and the names have been accepted by the Australian Plant Census:
* ''Eucalyptus phenax'' subsp. ''compressa'' D. Nicolle that has longer peduncles, larger flower buds and fruit than subspecies ''phenax'';
* ''Eucalyptus phenax'' Brooker & Slee subsp. ''phenax''.
Distribution and habitat
This eucalypt grows in mallee scrubs and is widely distributed in the southwest of Western Australia, the south-east of South Australia and the north-west of Victoria. It is most common in Western Australia where it occurs from near Bolgart through the southern wheatbelt to Esperance. Subspecies ''compressa'' is only known from the eastern side of Kangaroo Island and on the Fleurieu Peninsula.Conservation status
In Western Australia, this eucalypt is classified as "not threatened" in Western Australia by the Western Australian Government Department of Parks and Wildlife.See also
* List of ''Eucalyptus'' speciesReferences
{{Taxonbar, from=Q15354392 Eucalypts of Western Australia Flora of South Australia Flora of Victoria (state) phenax Myrtales of Australia Plants described in 1996 Taxa named by Ian Brooker