Diuris setacea

Diuris setacea is a tuberous, perennial herb with between six and ten spirally twisted leaves in a tuft at its base. The leaves are {{convert|50-100|mm|in|sigfig=1|abbr=on}} long and {{convert|1-2|mm|in|sigfig=1|abbr=on}} wide. Between two and seven yellow flowers with brown markings, {{convert|25-30|mm|in|sigfig=2|abbr=on}} long and {{convert|20-30|mm|in|sigfig=1|abbr=on}} wide are borne on a flowering stem {{convert|150-300|mm|in|sigfig=1|abbr=on}} tall. The dorsal sepal is erect, {{convert|13-16|mm|in|sigfig=1|abbr=on}} long and {{convert|7-8|mm|in|sigfig=2|abbr=on}} wide. The lateral sepals are {{convert|15-18|mm|in|sigfig=1|abbr=on}} long, {{convert|2-3|mm|in|sigfig=1|abbr=on}} wide and turned downwards. The petals are more or less erect or bent backwards, {{convert|11-14|mm|in|sigfig=1|abbr=on}} long and {{convert|6-7|mm|in|sigfig=2|abbr=on}} wide on a greenish brown stalk {{convert|3-5|mm|in|sigfig=2|abbr=on}} long. The labellum is {{convert|12-14|mm|in|sigfig=2|abbr=on}} long and has three lobes. The centre lobe is diamond-shaped, {{convert|6-8|mm|in|sigfig=1|abbr=on}} wide and folded lengthwise. The side lobes are {{convert|4-6|mm|in|sigfig=2|abbr=on}} long and {{convert|4|mm|in|sigfig=1|abbr=on}} wide and spread apart from each other. There are two, ridge-like calli {{convert|5-7|mm|in|sigfig=1|abbr=on}} long and outlined in brown along the mid-line of the labellum. Flowering occurs from October to December but much more prolifically after fire the previous summer.{{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 =125}}{{cite book|last1=Brown|first1=Andrew|last2=Dixon|first2=Kingsley|last3=French|first3=Christopher|last4=Brockman|first4=Garry|title=Field guide to the orchids of Western Australia : the definitive guide to the native orchids of Western Australia|date=2013|publisher=Simon Nevill Publications|isbn=9780980348149|page=230}}{{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=495|edition=3rd}}

Diuris setacea was first described in 1810 by Robert Brown and the description was published in his Prodromus Florae Novae Hollandiae et Insulae Van Diemen.{{cite web|title=Duiris setacea|url= https://id.biodiversity.org.au/instance/apni/521306|publisher=APNI|accessdate=6 April 2018}}{{cite book|last1=Brown|first1=Robert|title=Prodromus Florae Novae Hollandiae et Insulae Van Diemen|date=1810|location=London|page=316|url=https://www.biodiversitylibrary.org/item/21771#page/186/mode/1up|accessdate=6 April 2018}} The specific epithet (setacea) is derived from the Latin word seta meaning "bristle".{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page=392}}

The bristly donkey orchid grows in low heath in moist soil on granite outcrops between Esperance and Kalbarri.

Diuris setacea is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.{{FloraBase|name=Diuris setacea |id=1638}}

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setacea

Category:Endemic orchids of Australia

Category:Orchids of Western Australia

Category:Endemic flora of Western Australia

Category:Plants described in 1810