Английская Википедия:Allocasuarina anfractuosa

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Allocasuarina anfractuosa, commonly known as sinuous sheoak,[1] is a species of flowering plant in the family Casuarinaceae and is endemic to a restricted area in the southwest of Western Australia. It is a bushy, monoecious shrub that has spreading, sinuous branchlets, the leaves reduced to scales in whorls of 11 to 15, the fruiting cones Шаблон:Cvt long containing winged seeds (samaras) Шаблон:Cvt long.

Description

Allocasuarina anfractuosa is a bushy, monoecious shrub that typically grows to a height of up to about Шаблон:Cvt. Its branchlets are spreading, up to Шаблон:Cvt long and sinuous, the leaves reduced to erect or spreading, scale-like teeth Шаблон:Cvt long, arranged in whorls of 11 to 15 around the branchlets. The sections of branchlet between the leaf whorls (the "articles") are Шаблон:Cvt long and Шаблон:Cvt wide. Male flowers are arranged in head-like spikes Шаблон:Cvt long on the ends of branchlets, the anthers Шаблон:Cvt long. Female cones are covered with fine, white or dark yellowish hairs when young, and are sessile or on a peduncle up to Шаблон:Cvt long. Flowering has been observed in August and mature cones are more or less cylindrical, Шаблон:Cvt long and Шаблон:Cvt in diameter, the samaras dark brown and Шаблон:Cvt long.[2][3]

Taxonomy

Allocasuarina anfractuosa was first formally described in 2016 by Juliet Wege and Sarah Barrett in the journal Nuytsia from specimens collected by Barrett near the Pallinup River in 2014.[3][4] The specific epithet, (anfractuosa) means "sinuous", referring to the branchlets.[3]

Distribution and habitat

Sinuous sheoak grows in heath where it often forms dense stands, and is only known from a small area north-west of Boxwood Hill in the Esperance Plains bioregion of south-western Western Australia.[1][2][3]

Conservation status

Allocasuarina anfractuosa is listed as "Priority One" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[1] meaning that it is known from only one or a few locations that are potentially at risk.[5]

References

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