{{Short description|Genus of plants in the mustard family}} {{Use dmy dates|date=January 2021}} {{Automatic taxobox | image = Stenopetalum - Flickr - Kevin Thiele (1).jpg | image_caption = ''Stenopetalum'' sp. | taxon = Stenopetalum | authority = R.Br. ex DC.<ref name=apni/><ref name=candolle/> | type_species = | type_species_authority = | subdivision_ranks = Species | subdivision = }}
'''''Stenopetalum''''' (common name '''thread petal''')<ref>{{FloraBase|id=22414|name=''Stenopetalum''|access-date=2021-01-12}}</ref> is a genus in the Brassicaceae family which is endemic to Australia.<ref name=foa2/> It was first described by Robert Brown in 1821.<ref name=apni/><ref name=candolle/>
==Species== There are 11 species in the genus.<ref name=powo>{{Cite web|title=''Stenopetalum'' R.Br. ex DC. {{!}} Plants of the World Online|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:13070-1|access-date=2021-01-12|website=Plants of the World Online|language=en}}</ref><ref>{{Cite web|last=Western Australian Herbarium|first=Biodiversity and Conservation Science|title=FloraBase—the Western Australian Flora: ''Stenopetalum''|url=https://florabase.dpaw.wa.gov.au/search/advanced.php|access-date=2021-01-12|website=florabase.dpaw.wa.gov.au|language=en}}</ref> *''Stenopetalum anfractum'' E.A. Shaw *''Stenopetalum decipiens'' E.A. Shaw *''Stenopetalum filifolium'' Benth. *''Stenopetalum lineare'' R. Br. ex DC. *''Stenopetalum nutans'' F. Muell. *''Stenopetalum pedicellare'' F. Muell. ex Benth. *''Stenopetalum robustum'' Endl. *''Stenopetalum salicola'' Keighery *''Stenopetalum saxatile'' Keighery *''Stenopetalum sphaerocarpum'' F. Muell. *''Stenopetalum velutinum'' F. Muell.
==Description== Plants in this genus may be annuals or perennials. They are erect and may be with or without hair. The sepals are saccate (shaped like a pouch or sack) and have two forms. The petals are clawed and drawn out into a long, narrow apex. There are six stamens. The fruit opens at maturity to release the seeds. There are four to twenty mucous seeds in each locule, arranged in two rows.<ref name=foa2/>
==Etymology== The name ''Stenopetalum'' derives from the Greek, {{Transliteration|grc|stenos}}, ("narrow"), and the Latin, {{lang|la|petalum}}, ("petal"), and describes plants in the genus as having long, narrow petals.<ref name=foa2/>
==References== {{Reflist|refs= <ref name=candolle>{{cite Q|Q51525030|pages= 513|url=https://www.biodiversitylibrary.org/page/39512355}}</ref> <ref name=apni>{{APNI2|id=67857|name=''Stenopetalum''|accessdate=2021-01-12}}</ref> <ref name=foa2>{{cite book|author=H.J. Hewson |date=2020 |chapter=''Stenopetalum''|title= Flora of Australia|publisher= Australian Biological Resources Study, Department of Agriculture, Water and the Environment|location=Canberra|chapter-url= https://profiles.ala.org.au/opus/foa/profile/Stenopetalum |access-date=12 January 2021}}</ref> }}
==Further reading== *{{cite Q|Q100552550}} *{{cite Q|Q100730146}}
==External links== *[https://avh.ala.org.au/occurrences/search?taxa=Stenopetalum#tab_mapView ''Stenopetalum'' occurrence data] from Australasian Virtual Herbarium
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Category:Plants described in 1821 Category:Taxa named by Robert Brown (botanist, born 1773) Category:Brassicaceae genera Category:Endemic flora of Australia