Helichrysum argyrosphaerum DC.

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Helichrysum argyrosphaerum

Photo: Orty Bourquin
Modisa Wildlife Project,Grassland Game Farm, Ghanzi district.

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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.
Flowering time:Aug - Feb
Worldwide distribution: Angola, Botswana, Namibia, Malawi, Mozambique, Zambia, Zimbabwe, Lesotho and Nothern Province, Freestate, KwaZulu-Natal and Northern Cape, South Africa.
Botswana distribution: N,SW,SE
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: Saturday 6 February 2016
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).

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 Caprivi: Helichrysum argyrosphaerum
Flora of Mozambique: 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
Biodiversity Explorer (Biodiversity of southern Africa): Helichrysum argyrosphaerum
BHL (Biodiversity Heritage Library): Helichrysum argyrosphaerum
EOL (Encyclopedia of Life): Helichrysum argyrosphaerum
ePIC (electronic Plant Information Center): Helichrysum argyrosphaerum
Flora Zambesiaca web site: Helichrysum argyrosphaerum
GBIF (Global Biodiversity Information Facility): Helichrysum argyrosphaerum
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Helichrysum argyrosphaerum
IPNI (International Plant Names Index): Helichrysum argyrosphaerum
Ispot Southern Africa: Helichrysum argyrosphaerum
JSTOR Plant Science: Helichrysum argyrosphaerum
Kew Herbarium catalogue: Helichrysum argyrosphaerum
Mansfeld World Database of Agricultural and Horticultural Crops: Helichrysum argyrosphaerum
The Plant List (version 1.1): Helichrysum argyrosphaerum
Tropicos: Helichrysum argyrosphaerum


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-17

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2017). Flora of Botswana: Species information: Helichrysum argyrosphaerum.
http://www.botswanaflora.com/speciesdata/species.php?species_id=159470, retrieved 23 October 2017

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