Английская Википедия:Geissorhiza aspera

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Geissorhiza aspera, also known as the blue satin flower or blou sysie, is a geophyte from South Africa.

Description

This velvety-stemmed geophyte grows Шаблон:Convert tall.[1] Plants may, however, be larger or smaller than the typical range. Both the soil conditions and moisture play a role in height.[2] Each plant may branch up to three times, although branching is not always present.[2] The corm is covered in woody tunics.[1] The sword-shaped leaves have thickened margins and midribs. Normally plants will have three leaves, each of which is about the same length as the stem or slightly longer.[2]

Star-shaped flowers are present in August and September.[1][3] It flowers best after a wet winter. Each inflorescence has between three and seven flowers. They are usually dark blue or violet in colour, sometimes with a darker center.[3] The northern populations (Olifants River Valley, Gifberg and near Bitterfontein) are often white.[4][5] These flowers may still be blue on the outsides of the tepals.[5] The filaments are usually not all the same length, particularly in northern populations.[2] The green floral bracts dry and turn a rusty brown at the tips as the flowers open.[2] Plants typically seed in October.[3]

Distribution and habitat

This species is endemic to South Africa. This species was believed to be limited to the Western Cape until 2012, when a population in Namaqualand in the Northern Cape.[5] It is found growing between Gifberg and Agulhas, where it is most common on moist sandy soils at altitudes of Шаблон:Convert.[1][3]

Ecology

The flowers are most commonly pollinated by money beetles, which are attracted the darker area at the center of the flower.[3] It is also known to be pollinated by the Cape honey bee, a Braunsapsis species, Anisonyx ursus, a bombyllidae species and Anthophora diversipes.[4]

Conservation

This species is classified as being of least concern by the South African National Biodiversity Institute (SANBI) as it is common and widespread.[6] It is also able to tolerate disturbance and is common in disturbed habitats, such as roadsides and parks.[6]

References

Шаблон:Reflist

External links

Шаблон:AfricanPlants

Шаблон:Taxonbar


Шаблон:Iridaceae-stub