| 词条 | Caladenia nobilis |
| 释义 |
| name = Noble spider orchid | image = | image_caption = | status_system = | status = | genus = Caladenia | species = nobilis | authority = Hopper & A.P.Br.[1] | synonyms_ref = [1] | synonyms =
}} Caladenia nobilis, commonly known as the noble spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single hairy leaf and one or two large white flowers with a red-marked labellum. DescriptionCaladenia nobilis is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf, {{convert|100-180|mm|in|sigfig=1|abbr=on}} long and {{convert|4-8|mm|in|sigfig=1|abbr=on}} wide. One or two white flowers {{convert|120-250|mm|in|sigfig=1|abbr=on}} long and {{convert|100-130|mm|in|sigfig=1|abbr=on}} wide are borne on a stalk {{convert|200-400|mm|in|sigfig=1|abbr=on}} tall. The sepals and petals have long, dark brown, thread-like tips. The dorsal sepal is erect, {{convert|60-150|mm|in|sigfig=1|abbr=on}} long, {{convert|2.5-4|mm|in|sigfig=1|abbr=on}} wide. The lateral sepals are {{convert|60-150|mm|in|sigfig=1|abbr=on}} long, {{convert|3-6|mm|in|sigfig=1|abbr=on}} wide and turn downwards with drooping tips. The petals are {{convert|50-140|mm|in|sigfig=1|abbr=on}} long and {{convert|2.5-4|mm|in|sigfig=1|abbr=on}} wide and arranged like the lateral sepals. The labellum is {{convert|12-25|mm|in|sigfig=1|abbr=on}} long, {{convert|12-16|mm|in|sigfig=1|abbr=on}} wide and cream-coloured with radiating red lines, spots and blotches. The sides of the labellum have short, blunt teeth, and the tip is curled under. There are two rows of white, anvil-shaped calli, sometimes with red tips, along the centre of the labellum. Flowering occurs from July to mid-October.[1][2][3]Taxonomy and namingCaladenia nobilis was first described in 2001 by Stephen Hopper and Andrew Phillip Brown and the description was published in Nuytsia.[4] The specific epithet (nobilis) is a Latin word meaning "well-known", "celebrated" or "noble"[5] referring to large, attractive flowers of this species.[2]Distribution and habitatThe noble spider orchid occurs between Capel and Kalbarri in the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain biogeographic regions where it grows in a wide range of habitats including peppermint and tuart woodland and sandy hills near salt lakes.[2][1][3][6] ConservationCaladenia nobilis is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[6]References1. ^1 {{cite book|last1=Jones|first1=David L.|title=A complete guide to native orchids of Australia including the island territories|date=2006|publisher=New Holland|location=Frenchs Forest, N.S.W.|isbn=1877069124|pages =106–107}} {{Taxonbar|from=Q15287586}}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=66}} 3. ^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=44|edition=3rd}} 4. ^1 2 {{cite web|title=Caladenia nobilis|url=https://id.biodiversity.org.au/instance/apni/574405|publisher=APNI|accessdate=23 February 2017}} 5. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page = 419}} 6. ^1 {{FloraBase|name=Caladenia nobilis|id=17760}} 7 : Caladenia|Orchids of Western Australia|Endemic orchids of Australia|Plants described in 2001|Endemic flora of Western Australia|Taxa named by Stephen Hopper|Taxa named by Andrew Phillip Brown |
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