Links
[1] http://www.agric.wa.gov.au/iaquarantine/
[2] http://www.legislation.wa.gov.au/legislation/statutes.nsf/main_mrtitle_2735_homepage.html
[3] https://www.agric.wa.gov.au/form/biosecurity-contact-details
[4] https://www.agric.wa.gov.au/organisms?search_string=%2A&classification=6
[5] https://www.agric.wa.gov.au/organisms?search_string=Magnoliophyta
[6] https://www.agric.wa.gov.au/organisms?search_string=Magnoliopsida
[7] https://www.agric.wa.gov.au/organisms?search_string=Rosales
[8] https://www.agric.wa.gov.au/organisms?search_string=Crassulaceae
[9] https://www.agric.wa.gov.au/organisms?search_string=Aeonium
[10] https://www.agric.wa.gov.au/organisms?search_string=spathulatum
[11] https://www.agric.wa.gov.au/organisms?search_string=Rosales&per-page=20&sort-by=taxon&order-by=asc&ref_code_name=PER&classification=6&rank=species&page=4
[12] https://www.agric.wa.gov.au/biosecurity-biosecurity-quarantinebiosecurity-governance