Английская Википедия:Diuris pallescens
Шаблон:Short description Шаблон:Speciesbox
Diuris pallescens, commonly known as pale donkey orchid,[1] is a species of orchid that is endemic to the south-west of Western Australia. It has two or three linear to lance-shaped leaves and up to seven pale yellow flowers with light brown to reddish-brown markings.
Description
Diuris pallescens is a tuberous, perennial herb with two or three linear to lance-shaped leaves Шаблон:Cvt long and Шаблон:Cvt wide. Up to seven pale yellow flowers with light brown to reddish-brown markings, Шаблон:Cvt long and Шаблон:Cvt wide are borne on a flowering stem Шаблон:Cvt tall. The dorsal sepal is egg-shaped, Шаблон:Cvt long and Шаблон:Cvt wide, the lateral sepals narrowly oblong, down-turned and crossed, Шаблон:Cvt long and Шаблон:Cvt wide. The petals are broadly elliptic to more or less round, Шаблон:Cvt long and Шаблон:Cvt wide on a stalk Шаблон:Cvt long. The labellum is Шаблон:Cvt long with three lobes - the centre lobe wedge-shaped, Шаблон:Cvt long and Шаблон:Cvt wide, the side lobes spread widely apart and oblong, Шаблон:Cvt long and Шаблон:Cvt wide. There is a single smooth, yellow callus ridge Шаблон:Cvt long, along the mid-line of the labellum. Flowering occurs from late August to mid-September.[1][2][3]
Taxonomy and naming
Diuris pallescens was first formally described in 2016 by David Jones and Christopher J. French in Australian Orchid Review, from a specimen collected by French in the Caron Nature Reserve near Perenjori in 2005.[4] The specific epithet (pallescens) means "pale", "wan" or "becoming paler", referring to the colour of the flowers.[3][5]
Distribution and habitat
Pale donkey orchid grows in low, heathy shrubland, often near granite outcrops, mainly in the area between Three Springs, Coorow and Dalwallinu in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains and Mallee bioregions of south-western Western Australia.[1][2][3]
Conservation
Diuris pallescens is listed as "not threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions.[1]
References
- Английская Википедия
- Diuris
- Endemic orchids of Australia
- Orchids of Western Australia
- Plants described in 2016
- Taxa named by David L. Jones (botanist)
- Endemic flora of Western Australia
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