Английская Википедия:Hyalosperma demissum

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Use dmy dates Шаблон:Speciesbox

Hyalosperma demissum, commonly known as moss sunray,[1] is a flowering plant in the family Asteraceae. It is a small, annual herb with whitish yellow flowers and is endemic to Australia.

Description

Hyalosperma demissum is a rounded, small annual to Шаблон:Cvt high and sparsely covered with long, soft, straight hairs or smooth. The leaves are linear and more or less triangular in cross-section, about Шаблон:Cvt long, about Шаблон:Cvt wide and gradually tapering to a point. The whitish-yellow flowers are in dense clusters amongst the foliage, the bracts are arranged in 3-4 rows, broadly oblong to oval shaped, outer bracts Шаблон:Cvt long, almost translucent, light green, silvery or light yellowish brown. The florets are in groupings of 15-25 and the corolla has 3 or 4 lobes. Flowering occurs from September to December and the fruit is a dry, one-seeded, compressed, egg-shaped, warty and about Шаблон:Cvt long.[1][2]

Taxonomy and naming

This species was described in 1852 by Asa Gray and given the name Pteropogon demissus.[3] In 1989 Paul G.Wilson changed the name to Hyalosperma demissum and the description was published in Nuytsia.[4][5] The specific epithet (demissum) means "low-lying".[6]

Distribution and habitat

Moss-sunray grows on clay, loam, sand plains, shallow rocky soils and winter-wet locations in Western Australia, Tasmania, New South Wales, Victoria and South Australia.[1][7]

References

Шаблон:Reflist

Шаблон:Taxonbar