Belongs within: Gnaphalieae.
Helichrysum is a genus of everlastings widespread throughout the Old World. Heads have a naked receptacle with involucral bracts mostly scarious or with inner bracks petaloid and radiating (Black & Robertson 1965). Members of the section Xerochlaena are prostrate creepers with herbaceous or very softly woody stems (Allan 1961).
Characters (from Black & Robertson 1965): Involucre from hemispherical to cylindrical, of many unequal bracts in several rows, bracts usually rigid and sometimes with spreading small or conspicuous coloured laminae; flowers either all bisexual, or majority bisexual with comparatively few female ones in usually one outer row; flowers usually shorter than or not longer than involucre; rarely heads clustered without any general involucre. Pappus-bristles simple or barbellate or sometimes plumose towards summit but not plumose from base, usually united in a short ring.
<==Helichrysum Linnaeus 1753A61 `--H. sect. XerochlaenaA61 |--H. bellidioides (Forster) Willd. 1800 (see below for synonymy)A61 | |--H. b. var. bellidioidesA61 | |--H. b. var. gracile Allan 1961A61 | `--H. b. var. prostratum (Hooker) Kirk 1899 [=H. prostratum Hooker 1844, Gnaphalium prostratum Hooker 1853]A61 |--H. filicaule Hooker 1853A61 [=Gnaphalium filicaule Hooker 1864A61; incl. G. parviflorum Col. 1884C06] `--H. × purdiei Petrie 1890C06, A61 [H. bellidioides × H. glomeratumA61] Helichrysum incertae sedis: *H. orientaleA61 H. adenophorumBR65 H. adnatum [=Ozothamnus adnatus Candolle 1837]BR65 H. ambiguum Turczaninow 1851 [=Leptorhynchos ambiguus; incl. H. semicalvum von Mueller 1861]BR65 |--H. a. var. ambiguumBR65 `--H. a. var. paucisetumBR65 H. amboenseCV06 H. angustifoliumB28 H. anthemoidesM99 H. apiculatumBR65 |--H. a. var. apiculatumBR65 |--H. a. var. occidentaleBR65 `--H. a. var. racemosumBR65 H. arenariumBR65 H. ayersiiBR65 H. basedowii [incl. Leptorhynchos tetrachaetus var. penicillatus]BR65 H. baxteriBR65 H. bilobum Wakefield 1951 [incl. Ozothamnus retusus Sonder & von Mueller 1852 non H. retusum]BR65 |--H. b. var. bilobumBR65 `--H. b. var. scabrum (von Mueller) Robertson in Black & Robertson 1965 (see below for synonymy)BR65 H. blandowskianumBR65 H. brevidecurrensB96 H. cassinianum [=Schoenia cassiniana]BR65 H. catadromum Wakefield 1951 (see below for synonymy)BR65 H. cinereum [=Ozothamnus cinereus]BR65 H. condensatumK90 H. corymbiflorummM99 H. craspedioidesK90 H. cunninghamiiB96 H. cymosumC06 H. deserticolaCV06 H. dockeriBR65 H. erubescensCV06 H. ferrugineum [=Ozothamnus ferrugineus]BR65 H. floribundumM99 H. foetidumC55 H. × fowerakeri Cockayne 1916 [Ewartia sinclairii × H. bellidioides]A61 H. frigidumC55 H. gatesiiBR65 H. grandiflorumA27 H. humboltianumK90 H. hyalospermumK90 H. lentiiPB27 H. leucopsidiumBR65 H. luteoalbumLK14 H. marlothianumCV06 H. mellorianumBR65 H. microglossumM99 H. moschatumM99 H. obtusifolium von Mueller & Sonder 1852 (see below for synonymy)BR65 H. podolepideumBR65 H. ramosissimumM99 H. robustumPB27 H. roseum (Lindley) Druce 1917 [=Lawrencella rosea Lindley 1839; incl. H. lawrencella von Mueller 1866]BR65 |--H. r. var. roseumBR65 `--H. r. var. davenportiiBR65 H. rupestreR-CT01 H. rupicolaB00 H. rutidolepisBR65 H. scorpioidesB00 H. semifertileBR65 H. semipapposumBR65 |--H. s. var. semipapposumB96 `--H. s. var. brevifolium [incl. H. microlepis]B96 H. splendidumK90 H. stoechas (Linnaeus) Moench 1794PL04 |--H. s. ssp. stoechasPL04 `--H. s. ssp. barrelieri (Tenore) Nyman 1879PL04 H. strictumM99 H. stuhlmanniiPB27 H. tenellumK90 H. tephrodes Sweet 1827BR65 H. tepperiBR65 H. tesselatumB96
Helichrysum bellidioides (Forster) Willd. 1800 [=Xeranthemum bellidioides Forster 1786, Gnaphalium bellidioides Hooker 1853; incl. H. bellidioides var. erectum Kirk 1899]A61
Helichrysum bilobum var. scabrum (von Mueller) Robertson in Black & Robertson 1965 [=Ozothamnus scaber von Mueller 1852, H. adnatum var. scabrum, H. decurrens var. scabrum]BR65
Helichrysum catadromum Wakefield 1951 [incl. Ozothamnus decurrens von Mueller 1857, H. decurrens von Mueller 1873 non Moench 1794]BR65
Helichrysum obtusifolium von Mueller & Sonder 1852 [incl. Ozothamnus tephrodes Turczaninow 1851 non H. tephrodes Sweet 1827]BR65
*Type species of generic name indicated
References
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[LK14] Lyons, M. N., G. J. Keighery, L. A. Gibson & T. Handasyde. 2014. Flora and vegetation communities of selected islands off the Kimberley coast of Western Australia. Records of the Western Australian Museum Supplement 81: 205–244.
[M99] Matthews, M. 1999. Heliothine Moths of Australia: A guide to bollworms and related noctuid groups. CSIRO Publishing.
[PB27] Pilsbry, H. A., & J. Bequaert. 1927. The aquatic mollusks of the Belgian Congo, with a geographical and ecological account of Congo malacology. Bulletin of the American Museum of Natural History 53 (2): 69–602, pls 10–77.
[PL04] Pohl, G., & I. Lenski. 2004. Zur Verbreitung und Vergesellschaftung von Pennisetum orientale Rich. in Nordeuböa (Griechenland) (Poaceae, Paniceae). Senckenbergiana Biologica 83 (2): 209–223.
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