CRC for Australian Weed Management (2003a). Garden geranium (Pelargonium alchemilloides) Weed management guide. Available at http://www.weeds.crc.org.au/documents/wmg_geranium.pdf
CRC for Australian Weed Management (2003b). Other information. Reprinted form the UCI Arboretum 'Arboretum Quarterly' Vol. 3 No. 4. Available at http://darwin.bio.uci.edu/arboretum/pel.htm
Cullen, J. et al. (1997) (eds). The European garden flora: a manual for the identification of plants cultivated in Europe, both out -of -doors and under glass. Cambridge University Press, Cambridge.
Germishuizen, G. (1997). Wildflowers of Northern South Africa. Fernwood Press, Vlaeberg.
Pooley, E. (1998). A field guide to the wildflowers: Kwazulu-Natal and the Eastern Region. Natal Flora Publications Trust, Durban.
Van der Walt, J.J.A. (1977). Pelargomiums of Southern Africa Volume 1. Purnell & Sons, Cape Town.
Victorian Department of Primary Industries. Impact and Invasiveness Assessment. Available at http://www.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/weeds_garden_geranium .
Also see:
Australian Plant Census (2011). Available at http://www.anbg.gov.au/cgi-bin/apclist