''Maireana cheelii'', commonly known as chariot wheels, is a species of flowering plant in the family

Amaranthaceae Amaranthaceae ( ) is a family of flowering plants commonly known as the amaranth family, in reference to its type genus '' Amaranthus''. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, maki ...

, and is

endemic Endemism is the state of a species being found only 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 foun ...

to eastern Australia. It is a small, erect

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

with more or less

terete Terete is a term in botany used to describe a cross section (geometry), cross section that is circular, or like a distorted circle, with a single surface wrapping around it.Lichen Vocabulary, Lichens of North America Information, Sylvia and S ...

leaves,

bisexual Bisexuality is romantic attraction, sexual attraction, or sexual behavior toward both males and females. It may also be defined as the attraction to more than one gender, to people of both the same and different gender, or the attraction t ...

flowers arranged singly or in pairs, and a stiff, cottony fruiting

perianth The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower. It is a structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepal ...

with a wheel-shaped wing.

Description

''Maireana cheelii'' is an erect perennial plant that typically grows to a height of up to . Its leaves are more or less terete, fleshy,

glabrous Glabrousness () is the technical term for a lack of hair, down, setae, trichomes, or other such covering. A glabrous surface may be a natural characteristic of all or part of a plant or animal, or be due to loss because of a physical condition, ...

and up to long. Its flowers are bisexual and arranged singly or in pairs, the fruiting perianth stiff, wheel-shaped and woolly on the upper surface, in diameter, with five wings up to long with a radial ridge visible on the tube.

Taxonomy

This species was first formally described in 1934 by Robert Henry Anderson who gave it the name ''Kochia cheelii'' in ''

Proceedings of the Linnean Society of New South Wales The Linnean Society of New South Wales promotes ''the Cultivation and Study of the Science of Natural History in all its Branches'' and was founded in Sydney, New South Wales (Australia) in 1874 and incorporated in 1884. History The Society succ ...

'' from specimens collected by Ernest Officer in 1913. In 1975, Paul Wilson reassigned it to the genus, ''

Maireana ''Maireana'' is a genus of around 58 species of flowering plants in the family Amaranthaceae which are endemic to Australia. Plants in the genus ''Maireana'' are herbaceous to woody perennial plants or small shrubs with often fleshy or succulent ...

'' as ''M. cheelii'' in the journal ''

Nuytsia ''Nuytsia floribunda'' is a hemiparasitic tree found in Western Australia. The species is known locally as moodjar and, more recently, the Christmas tree or Western Australian Christmas tree. The display of intensely bright flowers during the ...

''. The

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

(''cheelii'') honours

Edwin Cheel Edwin Cheel (14 February 1872 – 19 September 1951) was an Australian botanist and collector. Before being appointed as a staff member of Centennial Park in 1897 he was a gardener in New South Wales and Queensland. Later he transferred to the R ...

, who first drew attention to this species.

Distribution and habitat

''Maireana cheelii'' usually grows on winter-wet, heavy loam or clay soils, usually with ''

Atriplex vesicaria ''Atriplex vesicaria'', commonly known as bladder saltbush, is a species of flowering plant of the family ''Amaranthaceae'' and is endemic to arid and semi-arid inland regions of Australia. It is an upright or sprawling shrub with scaly leaves ...

'' in the far south-west of

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

and near

Lake Buloke Lake Buloke is a eutrophic lake in the Wimmera region of north-western Victoria, Australia. The lake is fed by the Richardson River and is located adjacent to the township of . Lake Buloke is also one of the most popular duck shooting lakes in ...

and

Kerang Kerang is a town on the Loddon River in north-central Victoria (Australia), Victoria, Australia. It is the commercial centre to an irrigation district based on livestock, horticulture, cytisus proliferus, lucerne and grain. It is located no ...

Victoria Victoria most commonly refers to: * Queen Victoria (1819–1901), Queen of the United Kingdom and Empress of India * Victoria (state), a state of Australia * Victoria, British Columbia, Canada, a provincial capital * Victoria, Seychelles, the capi ...

. It was previously known from Kamarooka in Victoria, and near Eulo and

Thargomindah Thargomindah (frequently shortened to Thargo) is a rural town and locality in the Shire of Bulloo, Queensland, Australia. The town of Thargomindah is the administrative centre for the Shire of Bulloo. In the , the locality of Thargomindah h ...

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

, but has not been seen in that state since 1936.

Conservation status

Chariot wheels is listed as "vulnerable" species under the Australian Government ''

Environment Protection and Biodiversity Conservation Act 1999 The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and cult ...

'' and the New South Wales Government '' Biodiversity Conservation Act''. Threats to its current populations include weed invasion, grazing by stock, roadworks, and recreational vehicle use.

References

{{Taxonbar, from=Q15593888 cheelii Endemic flora of Australia Flora of New South Wales Flora of Victoria (state) Taxa named by Robert Henry Anderson Plants described in 1934