Attributes / relations provided by
♦ 1Derived from
Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
♦ 2Kattge, J. et al. (2011b)
TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 3del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 4Response of avian nectarivores to the flowering of Aloe marlothii: a nectar oasis during dry South African winters, Craig T. Symes , Susan W. Nicolson and Andrew E. McKechnie, Journal of Ornithology Volume 149, Number 1, 13-22
♦ 5Ben-Dov, Y., Miller, D.R. & Gibson, G.A.P.
ScaleNet 4 November 2009