Xerochrysum (syn. Bracteantha) is a genus of flowering plants native to Australia. It was defined by Russian botanist Nikolai Tzvelev in 1990, preceding (and taking precedence over) Bracteantha which was described the following year.[1][2] A 2002 molecular study of the tribe Gnaphalieae has indicated the genus is probably polyphyletic, with X. bracteatum and X. viscosum quite removed from each other.[3]
Species
This genus and its species names were formerly included in Bracteantha and before that in Helichrysum.
As of January 2014 the authoritative Australian Plant Name Index recognises seven formally named species and five accepted species awaiting formal naming, description and publication:[4]
Xerochrysum bicolor (Lindl.) R.J.Bayer – Tasmania
Xerochrysum bracteatum (Vent.) Tzvelev, Strawflower or golden everlasting – NSW, Vic, Tas, SA, Qld, NT, WA
Xerochrysum collierianum A.M.Buchanan – Tasmania
Xerochrysum palustre (Flann) R.J.Bayer, Swamp everlasting, syn.: Bracteantha sp. aff. subundulata – Vic, Tas
Xerochrysum papillosum (Labill.) R.J.Bayer – Vic, Tas
Xerochrysum subundulatum (Sch.Bip.) R.J.Bayer, Alpine everlasting or orange everlasting – NSW, ACT, Vic, Tas
Xerochrysum viscosum (Sieber ex DC.) R.J.Bayer, Sticky everlasting – NSW, ACT, Qld, Vic
