| 词条 | Prasophyllum parvifolium |
| 释义 |
| name = Autumn leek orchid | image = Prasophyllum parvifolium (35843729292) - cropped.jpg | image_caption = | taxon = Prasophyllum parvifolium | authority= Lindl. | display_parents = 3 | synonyms_ref= [1] | synonyms=Prasophyllum macrostachyum R.Br. }} Prasophyllum parvifolium, commonly known as the autumn leek orchid, is a species of orchid endemic to the south-west of Western Australia. It is a common species in its range and has a single smooth, tube-shaped leaf and up to eighteen or more green and white flowers with red stripes. DescriptionPrasophyllum parvifolium is a terrestrial, perennial, deciduous, herb with an underground tuber and a single smooth green, tube-shaped leaf {{convert|100-350|mm|in|sigfig=1|abbr=on}} long and about {{convert|2|mm|in|sigfig=1|abbr=on}} in diameter. Between six and eighteen or more flowers are arranged on a flowering spike {{convert|150-400|mm|in|sigfig=1|abbr=on}} high. The flowers are green and white with red stripes, about {{convert|10|mm|in|sigfig=1|abbr=on}} long and {{convert|6-8|mm|in|sigfig=1|abbr=on}} wide. The dorsal sepal is broad and the lateral sepals and petals face forwards. The lateral sepals are free from each other and the labellum curves strongly upwards between the lateral sepals. Flowering occurs from June to August.[1][2]Taxonomy and namingPrasophyllum parvifolium was first formally described in 1840 by John Lindley and the description was published in A Sketch of the Vegetation of the Swan River Colony.[3] The specific epithet (parvifolium) is derived from the Latin words parvus meaning "little"[4]{{rp|489}} and folium meaning "leaf".[4]{{rp|466}} referring to the free part of the leaf.[2]Distribution and habitatThe autumn leek orchid is common in heath, woodland and forest between Eneabba and Manjimup in the Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain and Warren biogeographic regions.[2][1][5] ConservationThis orchid is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[5] References1. ^1 {{cite book|last1=Hoffman|first1=Noel|last2=Brown|first2=Andrew|title=Orchids of South-West Australia.|date=2011|publisher=Noel Hoffman|location=Gooseberry Hill|isbn=9780646562322|page=362|edition=3rd}} 2. ^1 2 {{cite book|last1=Brown|first1=Andrew|last2=Dundas|first2=Pat|last3=Dixon|first3=Kingsley|last4=Hopper|first4=Stephen|title=Orchids of Western Australia|date=2008|publisher=University of Western Australia Press|location=Crawley, Western Australia|isbn=9780980296457|page=316}} 3. ^1 {{cite web|title=Prasophyllum parvifolium|url= https://id.biodiversity.org.au/instance/apni/535672|publisher=APNI|accessdate=28 November 2017}} 4. ^1 {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}} 5. ^1 {{FloraBase|name=Prasophyllum gracile|id=1680}} External links
4 : Prasophyllum|Endemic flora of Western Australia|Endemic orchids of Australia|Plants described in 1840 |
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