''Eucalyptus yalatensis'', commonly known as the Yalata mallee, is a species of mallee or a shrub that is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

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.

Description

''Eucalyptus yalatensis'' is a mallee that typically grows to a height of , or a low, sprawling shrub with a diameter up to , and forms a

lignotuber A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a response t ...

. It has rough, fibrous to flaky brownish grey bark on part or all of the stems, smooth pale grey to brownish bark above. Young plants and

coppice Coppicing is a traditional method of woodland management which exploits the capacity of many species of trees to put out new shoots from their stump or roots if cut down. In a coppiced wood, which is called a copse, young tree stems are repeated ...

regrowth have dull greyish green,

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

, egg-shaped leaves that are long and wide. Adult leaves are arranged alternately, the same shade of greyish or

glaucous ''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), g ...

on both sides, lance-shaped, long and wide, tapering to a petiole long. The flower buds are arranged in leaf

axil 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 nine or eleven on an unbranched peduncle long, the individual buds on

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

long. Mature buds are spindle-shaped to egg-shaped, long and wide with a narrow conical operculum that is longer than the

floral cup In angiosperms, a hypanthium or floral cup is a structure where basal portions of the calyx, the corolla, and the stamens form a cup-shaped tube. It is sometimes called a floral tube, a term that is also used for corolla tube and calyx tube. It ...

. It blooms between October and February producing creamy white or pale yellowish flowers. The fruit is a woody, hemispherical to shortened spherical capsule long and wide with the valves protruding. The seeds are oval, glossy grey-brown and long.

Taxonomy and naming

''Eucalyptus yalatensis'' was first formally described in 1975 by Clifford Boomsma in the ''South Australian Naturalist'' from specimens collected by Bruce Jabez Copley (1933–1984) near

Yalata Yalata is an Aboriginal community located west of Ceduna and south of Ooldea on the edge of the Nullarbor Plain in South Australia. It lies on the traditional lands of the Wirangu people, but the settlement began as Yalata Mission in the ...

in 1969. 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 ...

and common name refer to the area where the type specimens were collected.

Distribution

Yalata mallee grows in mallee on level to slightly undulating country, sometimes on limestone cliffs but always on

calcareous Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an adje ...

or sandy soil over limestone. It is found from Balladonia and

Israelite Bay Israelite Bay is a bay and locality on the south coast of Western Australia. Situated in the Shire of Esperance local government area, it lies east of Esperance and the Cape Arid National Park, within the Nuytsland Nature Reserve and the Grea ...

in the west to the

Eyre Peninsula The Eyre Peninsula is a triangular peninsula in South Australia. It is bounded by the Spencer Gulf on the east, the Great Australian Bight on the west, and the Gawler Ranges to the north. Originally called Eyre’s Peninsula, it was named aft ...

in South Australia, and disjunctly near

Mannum Mannum is a historic town on the west bank of the Murray River in South Australia, east of Adelaide. At the 2016 census, the urban area of Mannum had a population of 2,398. Mannum is the seat of the Mid Murray Council, and is situated in the ...

Conservation status

This eucalypt is classified as "not threatened" by the Western Australian Government

Department of Parks and Wildlife The Department of Parks and Wildlife (DPaW) was the department of the Government of Western Australia responsible for managing lands described in the ''Conservation and Land Management Act 1984'' and implementing the state's conservation and e ...

References

{{Taxonbar, from=Q15357194 Eucalypts of Western Australia yalatensis Myrtales of Australia Flora of South Australia Plants described in 1975 Mallees (habit)

Description

Taxonomy and naming

Distribution

Conservation status

See also

References