Friend E (1983) Queensland weed seeds. Queensland Department of Primary Industries, Brisbane. Link to Bush Tracks Online preview of publication.

Thorp JR, Lynch R (2000) The Determination of Weeds of National Significance. National Weeds Strategy Executive Committee and Commonwealth of Australia. (Online Resource) http://www.weeds.org.au/docs/WONS/  (Accessed: August 2007)

The Weeds CRC developed a suite of excellent resources to assist with the identification and control of weeds in Australia.  The Weeds CRC finished in 2008.  Their website has now been archived but can be accessed via: Pandora Archive to Weeds CRC