Английская Википедия:Caladenia longicauda subsp. longicauda

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Caladenia longicauda subsp. longicauda, commonly known as the white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four, mostly white flowers with long drooping, thread-like ends on the sepals and petals. It grows in woodland and forest.

Description

Caladenia longicauda subsp. longicauda is a terrestrial, perennial, deciduous, herb with an underground tuber and which sometimes grows as a solitary plant, otherwise in a small clump. It has a single hairy leaf, Шаблон:Convert long and Шаблон:Convert wide. Up to four mostly white flowers Шаблон:Convert long and Шаблон:Convert wide are borne on a spike Шаблон:Convert tall. The sepals and petals have long, brown, thread-like tips. The dorsal sepal is erect, Шаблон:Convert long and about Шаблон:Convert wide. The lateral sepals are Шаблон:Convert long, Шаблон:Convert wide and spread widely at their bases but with their tips drooping. The petals are Шаблон:Convert long, Шаблон:Convert wide and arranged like the lateral sepals. The labellum is white, Шаблон:Convert long, Шаблон:Convert wide and white with erect or spreading teeth up to Шаблон:Convert long. The tip of the labellum is curled under and there are for to eight rows of white to reddish calli up to Шаблон:Convert in its centre. The column is Шаблон:Convert long and Шаблон:Convert wide. Flowering occurs from August to October.

Taxonomy and naming

Caladenia longicauda was first formally described by John Lindley in 1840 and the description was published in A Sketch of the Vegetation of the Swan River Colony. In 2001 Stephen Hopper and Andrew Brown described eleven subspecies, including subspecies longicauda and the descriptions were published in Nuytsia. The specific epithet (longicauda) is a derived from the Latin words longus meaning “long"Шаблон:Rp and cauda meaning "a tail" or "appendage"Шаблон:Rp referring to the long thin ends of the sepals and petals.

Distribution and habitat

The white spider orchid is common to the south-west of a line between Lancelin and Mount Barker in the Avon Wheatbelt, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic regions where it grows in woodland and forest.

Conservation

Caladenia longicauda subsp. longicauda is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.