Xerochrysum

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]

Cultivar of
Xerochrysum bracteatum
Xerochrysum viscosum Sticky Everlasting
Xerochrysum bicolor

Xerochrysum
Xerochrysum subundulatum
Alpine everlasting
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Supertribe: Asterodae
Tribe: Gnaphalieae
Genus: Xerochrysum
Tzvelev
Species

See text

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
Species provisionally named, described and accepted by the authoritative Australian Plant Name Index while awaiting formal publication
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References
  1. Bayer, R. J. (2001). "Xerochrysum Tzvelev, a pre-existing generic name for Bracteantha Anderb. & Haegi (Asteraceae: Gnaphalieae)". Kew Bulletin. 56 (4): 1013–1015. doi:10.2307/4119317. JSTOR 4119317.
  2. Wilson, Paul G. (2002). "Xerochrysum the correct name for the genus Bracteantha". Australian Plants. 21 (173): 398.
  3. Randall J. Bayer; David G. Greber; Neil H. Bagnall (2002). "Phylogeny of Australian Gnaphalieae (Asteraceae) Based on Chloroplast and Nuclear Sequences, the trnL Intron, trnL/trnF Intergenic Spacer, matK, and ETS". Systematic Botany. 27 (4): 801–14. doi:10.1043/0363-6445-27.4.801 (inactive 2020-01-22).
  4. "Xerochrysum". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 12 Jan 2014.
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