Английская Википедия:Caladenia crebra

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Caladenia crebra, commonly known as the Arrowsmith spider orchid is a species of orchid endemic to the south-west of Western Australia. It has one or two relatively large, greenish-yellow flowers whose lateral sepals have thin brown "clubs" on their ends.

Description

Caladenia crebra is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf, Шаблон:Convert long and Шаблон:Convert wide. In August or September it produces one or two flowers on the end of a stalk Шаблон:Convert tall, each flower Шаблон:Convert wide. The flowers are greenish-yellow, sometimes with red markings. The dorsal sepal is erect, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals are Шаблон:Convert long, Шаблон:Convert wide and may spread widely below the flower or cross each other. The sepals have thin brown "clubs" Шаблон:Convert on their ends. The petals are Шаблон:Convert long, Шаблон:Convert wide and curve backwards. The labellum is greenish-yellow, Шаблон:Convert long, Шаблон:Convert wide with many upturned, narrow teeth up to Шаблон:Convert long, along its sides, often with hooks on their ends. There are many densely crowded, dark purplish, finger-like "calli" crowded in distinct rows in the central part of the labellum. Flowering occurs from August to September. The fruit is a non-fleshy, dehiscent capsule containing a large number of seeds.[1][2]

Taxonomy and naming

Caladenia crebra was first formally described by Alex George in 1971 and the description was published in Nuytsia from a specimen found south of Dongara.[3] The specific epithet (crebra) is a Latin word meaning "crowded".[4]

Distribution and habitat

The Arrowsmith spider orchid is widespread and common between Dongara and Jurien Bay in the Geraldton Sandplains and Swan Coastal Plain biogeographic regions. It grows in shallow, sandy soil in low forest and shrubland.[1][5]

Conservation

Caladenia crebra is classified as "Not Threatened" by the Western Australian Government Department of Parks and Wildlife.[5]

References

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