| 词条 | Caladenia multiclavia |
| 释义 |
| name = Lazy spider orchid | image = Caladenia multiclavia.jpg | image_caption = Caladenia multiclavia growing near Jerramungup | status_system = | status = | genus = Caladenia | species = multiclavia | authority = Rchb.f.[1] | synonyms_ref = [1] | synonyms =
}} Caladenia multiclavia, commonly known as the lazy 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 greenish-yellow, red and cream-coloured flowers resembling a reclining spider. Although it usually only has a single flower, it often grows in clumps of up to six plants. DescriptionCaladenia multiclavia is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf, {{convert|40-100|mm|in|sigfig=1|abbr=on}} long and {{convert|5-10|mm|in|sigfig=1|abbr=on}} wide. Up to three greenish-yellow, red and cream-coloured flowers, {{convert|30-40|mm|in|sigfig=1|abbr=on}} long and wide are borne on a stalk {{convert|100-250|mm|in|sigfig=1|abbr=on}} tall. The flowers are greenish-yellow, red and cream-coloured, shaped like a reclining spider and the sepals and petals have thin, thread-like tips. The dorsal sepal and petals are close together and parallel, curved down behind the column near their bases, then upswept at the back of the flower. The lateral sepals are similarly arranged but at the front of the flower. The dorsal sepal is {{convert|30-40|mm|in|sigfig=1|abbr=on}} long and {{convert|3-4|mm|in|sigfig=1|abbr=on}} wide, the lateral sepals are {{convert|30-40|mm|in|sigfig=1|abbr=on}} long and {{convert|4-5|mm|in|sigfig=2|abbr=on}} wide and the petals are {{convert|25-35|mm|in|sigfig=2|abbr=on}} long and about {{convert|3|mm|in|sigfig=2|abbr=on}} wide. The labellum is {{convert|14-16|mm|in|sigfig=2|abbr=on}} long and wide, diamond-shaped and prominently red-striped in the centre of the flower. In the centre of the labellum there is a dense cluster of reddish, club-shaped calli up to {{convert|2.5|mm|in|sigfig=1|abbr=on}} long. Flowering occurs from September to October.[1][2][3]Taxonomy and namingCaladenia multiclavia was first described in 1871 by Heinrich Reichenbach and the description was published in Beitrage zur Systematischen Pflanzenkunde.[4][5] The specific epithet (multiclavia) is derived from the Latin words multus meaning "much" or "many"[6]{{rp|64}} and clava meaning "club",[6]{{rp|213}} referring to the many calli on the labellum of this species.[2]Distribution and habitatThe lazy spider orchid occurs in a band between Wongan Hills and Ravensthorpe in the Avon Wheatbelt, Esperance Plains and Mallee biogeographic regions where it grows in she-oak thickets and open woodland.[1][2][3][7] ConservationCaladenia multiclavia is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[7]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|page=113}} {{Taxonbar|from=Q15287631}}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=160}} 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=81|edition=3rd}} 4. ^1 2 {{cite web|title=Caladenia multiclavia|url=https://id.biodiversity.org.au/instance/apni/514369|publisher=APNI|accessdate=11 February 2017}} 5. ^{{cite book|last1=Reichenbach|first1=Heinrich Gustav|title=Beitrage zur Systematischen Pflanzenkunde|date=1871|publisher=Th. G. Meissner|location=Hamburg|page=64|url=https://babel.hathitrust.org/cgi/pt?id=coo.31924000611487;view=1up;seq=72|accessdate=22 February 2017}} 6. ^1 {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}} 7. ^1 {{FloraBase|name=Caladenia multiclavia|id=1607}} 5 : Caladenia|Orchids of Western Australia|Endemic orchids of Australia|Plants described in 1871|Endemic flora of Western Australia |
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