CRC for Australian Weed Management (2003) Weed Management Guide-Holly leaved senecio (Senecio glastifolius). Available at http://www.environment.gov.au/biodiversity/invasive/weeds/weeds-alert/pubs/s-glastifolius.pdf .
Walt, L. van der (2002) Senecio glastifolius L.f., PlantZAfrica.com. Available at http://www.plantzafrica.com/plantqrs/senecioglast.htm .
Williams, P.A., Ogle, C.C., Timmins, S.M., La Cock, G. & Reid, V. (1999) Biology and ecology of Senecio glastifolius and its spread and impacts in New Zealand. Science for Conservation 112, Department of Conservation, New Zealand. Available at http://csl.doc.govt.nz/upload/documents/science-and-technical/Sfc112.pdf .
Also see:
Australian Plant Census (2011). Available at http://www.anbg.gov.au/cgi-bin/apclist
Australian Weed Committee
https://www.weeds.org.au/cgi-bin/weedident.cgi?tpl=plant.tpl&state=&s=&ibra=all&card=H37
Department of Primary Industries, State of Victoria
http://www.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/weeds_holly_leaved_senecio