The Australian Plant Census (APC) is a list of the accepted scientific names for the Australian vascular flora, ferns, gymnosperms, hornworts and liverworts, both native and introduced, and includes synonyms and misapplications for these names. The APC covers all published scientific plant names used in an Australian context in the taxonomic literature, but excludes taxa known only from cultivation in Australia. The taxonomy and nomenclature adopted for the APC are endorsed by the Council of Heads of Australasian Herbaria (CHAH).
B.R.Randell & B.A.Barlow, Fl. Australia 12: 89-138 (1998) noted that many of the taxa recognised in Australia were not normal sexually reproducing populations, but were the product of (often repeated) polyploidy, apomixis and hybridisation. They treated these taxa as 'form taxa' to draw attention to their anomalous genetic makeup. This approach has not met with uniform approval, taxa are here treated using traditional species and infraspecies nomenclature.
WA (native and naturalised), CoI (naturalised), ChI (naturalised), NT (native and naturalised), SA (native and naturalised), Qld (native and naturalised), NSW (native and naturalised), LHI (naturalised), NI (naturalised), ACT, Vic (native and naturalised)