Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.
Karis, P.O. 1989. Systematics of the genus Metalasia (Asteraceae - Gnaphalieae). Opera Botanica 99:1-150.
Rebelo, T. 2001. Conebushes. Protea Atlas Project: Interim distribution map: Cape edition 3 3:1-44.
|