Helichrysum argyrosphaerum DC.

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Photo: Sune Holt
Vilankulo, Inhambane, Mozambique

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Synonyms:
Common names:	Rosebud everlasting (English) Silverheads (English)
Frequency:
Status:	Native
Description:	Low annual herb with a long taproot and radiating prostrate branches, up to 25 cm long. Leaves spathulate to oblanceolate, up to c. 2.5 cm long, thinly grey-woolly on both sides. Capitula solitary at the end of branches. Involucral bracts c. 9-seriate, up to 7 mm long, silvery white, turning pink at the centre. Florets yellow, often pink-tipped, turning brown with age.
Notes:
Derivation of specific name:	argyrosphaerum: with a silver sphere; referring to the white rings of involucral bracts.
Habitat:	Widespread in sandy areas in open woodland and grassland, often in disturbed soil or as a weed of cultivation.
Altitude range:
Flowering time:	Jun - Feb
Worldwide distribution:	Angola, Botswana, Namibia, Malawi, Mozambique, Zambia, Zimbabwe, Lesotho and Northern Province, Freestate, KwaZulu-Natal and Northern Cape, South Africa.
Mozambique distribution:	MS,GI,M
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Content last updated:	Monday 1 December 2014
Literature:	Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 215. (Includes a picture). Hilliard, O.M. (1983). Asteraceae, Inuleae, Gnaphaliinae Flora of Southern Africa 33-7-2 Pages 170 - 173. (Includes a picture). Kirby, G. (2013). Wild Flowers of Southeast Botswana Struik Nature, Cape Town South Africa Page 255. (Includes a picture). Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 25. Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 38. (Includes a picture). Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 34. Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 199.

Other sources of information about Helichrysum argyrosphaerum:

Our websites:

Flora of Botswana: Helichrysum argyrosphaerum
Flora of Caprivi: Helichrysum argyrosphaerum
Flora of Zambia: Helichrysum argyrosphaerum
Flora of Zimbabwe: Helichrysum argyrosphaerum

External websites:

African Plants: A Photo Guide (Senckenberg): Helichrysum argyrosphaerum
African Plant Database: Helichrysum argyrosphaerum
BHL (Biodiversity Heritage Library): Helichrysum argyrosphaerum
EOL (Encyclopedia of Life): Helichrysum argyrosphaerum
GBIF (Global Biodiversity Information Facility): Helichrysum argyrosphaerum
Google: Web - Images - Scholar
iNaturalist: Helichrysum argyrosphaerum
IPNI (International Plant Names Index): Helichrysum argyrosphaerum
JSTOR Plant Science: Helichrysum argyrosphaerum
Mansfeld World Database of Agricultural and Horticultural Crops: Helichrysum argyrosphaerum
Plants of the World Online: Helichrysum argyrosphaerum
Tropicos: Helichrysum argyrosphaerum
Wikipedia: Helichrysum argyrosphaerum