Xerochrysum Explained

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]}

Species

This genus and its species names were formerly included in Bracteantha and before that in Helichrysum.

the authoritative Australian Plant Census recognises thirteen formally named species and five accepted species awaiting formal naming, description and publication:^[3]

• Xerochrysum alpinum – Tasmania
• Xerochrysum bicolor – Tasmania
• Xerochrysum boreale – WA, NT, Qld
• Xerochrysum bracteatum, strawflower or golden everlasting – NSW, Vic, Tas, SA, Qld, NT, WA
• Xerochrysum collierianum – Tasmania
• Xerochrysum halmaturorum – SA
• Xerochrysum interiore – WA, NT, SA
• Xerochrysum macranthum – WA
• Xerochrysum milliganii – Tasmania
• Xerochrysum palustre, swamp everlasting, syn.: Bracteantha sp. aff. subundulata – Vic, Tas
• Xerochrysum papillosum – Vic, Tas
• Xerochrysum subundulatum, alpine everlasting or orange everlasting – NSW, ACT, Vic, Tas
• Xerochrysum viscosum, sticky everlasting – NSW, ACT, Qld, Vic

Species provisionally named, described and accepted by the authoritative Australian Plant Name Index while awaiting formal publication

• Xerochrysum sp. Glencoe (M.Gray 4401) NE Herbarium – Qld, NSW
• Xerochrysum sp. Mt Merino [Lamington National Park] (S.T.Blake 22869) NE Herbarium – Qld, NSW
• Xerochrysum sp. New England (L.M.Copeland 3731) NE Herbarium – NSW
• Xerochrysum sp. North Stradbroke Island (L.Durrington 675) NE Herbarium – Qld, NSW
• Xerochrysum sp. Point Lookout (I.R.Telford 12830) NE Herbarium – NSW

A large scale molecular study conducted in 2022 expands the number of Xerochrysum species to 24, but as of 2024 has not been used for the Australian Plant Census.^[4]

External links

• • ASGAP: Xerochrysum bracteatum and Xerochrysum subundulatum
• PlantNET: Xerochrysum
• PlantNET: Key to Xerochrysum

Notes and 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 . 4119317 . 10.2307/4119317. 2001KewBu..56.1013B .
2. Wilson, Paul G.. 2002. Xerochrysum the correct name for the genus Bracteantha. Australian Plants. 21. 173. 398.
3. Web site: Vascular Plants . 2024-09-06 . biodiversity.org.au.
4. Collins . Timothy L. . Schmidt-Lebuhn . Alexander N. . Andrew . Rose L. . Telford . Ian R. H. . Bruhl . Jeremy J. . 2022-06-09 . There's gold in them thar hills! Morphology and molecules delimit species in Xerochrysum (Asteraceae; Gnaphalieae) and reveal many new taxa . Australian Systematic Botany . en . 35 . 2 . 120–185 . 10.1071/SB21014 . 1446-5701. free .