Английская Википедия:Caladenia clavula

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Caladenia clavula, commonly known as the small-clubbed spider orchid,[1] is a plant in the orchid family Orchidaceae and is endemic to South Australia. It is a ground orchid which grows singly or in loose groups and has a singly hairy leaf and usually a single greenish-yellow flower with red stripes.

Description

Caladenia clavula is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy, lance-shaped to egg-shaped leaf, Шаблон:Convert long and Шаблон:Convert wide. Usually only one flower is borne on a spike Шаблон:Convert high. The flowers are greenish-yellow to brownish with central red stripes and are about Шаблон:Convert wide. The dorsal sepal is Шаблон:Convert long, Шаблон:Convert wide, linear in shape for about half its length then narrows to a thread-like tail. The lateral sepals are Шаблон:Convert long, about Шаблон:Convert wide, linear to lance-shaped for about half their length, curved like a sickle then narrowed to a thread-like tail. The dorsal and lateral sepals have a yellowish glandular tip. The petals are Шаблон:Convert long, about Шаблон:Convert wide, linear to lance-shaped and slightly curved. The labellum is broadly heart-shaped when flattened, Шаблон:Convert long and wide, greenish to greenish-brown and has three sections. The lateral sections have five or six teeth, the longest about Шаблон:Convert long. The middle section curves forward and has shorter teeth on its edges, decreasing in length towards the tip. The central part also has rows of golf-stick shaped calli along it centre. Flowering occurs from August to October.[2]

Taxonomy and naming

Caladenia clavula was first formally described by David L. Jones in 1991 and the description was published in Australian Orchid Research. The type specimen was collected in the Carappee Hill Conservation Park near Darke Peak.[3] The specific epithet (clavula) is a Latin word meaning "little club",[4] referring to the small glands on the ends of the sepals.[2]

Distribution and habitat

This caladenia grows in sparse woodland and mallee in the Flinders Ranges and Eyre Peninsula regions of South Australia.[2][5]

References

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