''Leucopogon lasiostachyus'' is a species of flowering plant in the heath family Ericaceae and 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 the

south-west The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each se ...

of Western Australia. It is an erect shrub with egg-shaped to lance-shaped leaves and dense, cylindrical spikes of tube-shaped white flowers on the ends of branches and in leaf axils.

Description

''Leucopogon lasiostachyus'' is an erect shrub that typically grows to a height of and has wand-like branches and foliage covered with soft hairs. The leaves are egg-shaped to lance-shaped, usually long and prominently ribbed on the lower surface. The flowers are arranged in dense, cylindrical spikes long on the ends of branches or in upper leaf axils with lance-shaped or linear

bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...

s and egg-shaped bracteoles more than half as long as long as the

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s. The sepals and bracts are shaggy-hairy, the sepals about long and the petals white, forming a tube much shorter than the sepals, the lobes about twice as long as the petal tube.

Taxonomy

''Leucopogon lasiostachyus'' was first formally described in 1859 by

Sergei Sergeyevich Sheglejev Sergei Sergeyevich Shchegléiev (or Shchegleev, Stchegleev, Stschegleew) (transliteration from Cyrillic: Серге́й Серге́евич Щегле́ев) (1820 - 1859) was a Russian botanist, Ph.D. in botany, and associate professor at the D ...

in the ''Bulletin de la Société impériale des naturalistes de Moscou'' from specimens collected by James Drummond. 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 ...

(''lasiostachyus'') means "shaggy- or woolly-hairy flower spike".

Distribution and habitat

This leucopogon grows in rocky soils on sandplains, ridge tops and hills in the

Esperance Plains Esperance Plains, also known as Eyre Botanical District, is a biogeographic region in southern Western Australia on the south coast between the Avon Wheatbelt and Hampton bioregions, and bordered to the north by the Mallee region. It is a pl ...

and

Jarrah Forest Jarrah forest is tall open forest in which the dominant overstory tree is ''Eucalyptus marginata'' (jarrah). The ecosystem occurs only in the Southwest Botanical Province of Western Australia. It is most common in the biogeographic region named in ...

bioregions of south-western Western Australia.

Conservation status

''Leucopogon lasiostachyus'' is listed as "not threatened" by the Government of Western Australia

Department of Biodiversity, Conservation and Attractions The Department of Biodiversity, Conservation and Attractions (DBCA) is the Western Australian government The Government of Western Australia, formally referred to as His Majesty's Government of Western Australia, is the Australian state de ...

References

{{Taxonbar, from=Q51048565 lasiostachyus Ericales of Australia Flora of Western Australia Plants described in 1859