Useful links
Brisbane City Council Website - weed identification tool
http://www.brisbane.qld.gov.au/environment-waste/weeds/weed-control-methods/index.htm

Plantnet - online flora
http://plantnet.rbgsyd.nsw.gov.au/floraonline.htm

Plant lists for each shire:
http://www.derm.qld.gov.au/wildlife-ecosystems/plants/index.html

Weeds Australia - Weed identification
http://www.weeds.org.au/cgi-bin/weedident.cgi?tpl=plant.tpl&ibra=all&card=W22

Weed spotters - links to other sites
http://www.derm.qld.gov.au/wildlife-ecosystems/plants/queensland_herbarium/weed_spotters_queensland_network.html