ANPSA consists of eight affiliated Member Societies, one for each of the six Australian states plus the Australian Capital Territory and the Northern Territory. Although there is regular contact between the Regions, each is independent and responsible for managing its own affairs and memberships within its geographical area. Each Member Society publishes a regular newsletter for its members who generally reside within the geographical area covered by the particular Society, but this is not mandatory. Regular Regional meetings allow members to hear expert speakers on a range of topics related to the Australian flora.
Within each Member Society, District Groups have been established to enable members who live in the same locality to meet regularly and to participate in activities such as bushwalks, plant propagation workshops, plant identification sessions, garden visits and local meetings with qualified guest speakers. There are almost 100 District Groups throughout Australia. Further information on these District Groups is provided below.
The District Groups operate under the rules and regulations of the Member Society in which they are located but have their own elected executive and generally issue a regular newsletter covering local activities. District Groups may charge a small fee to cover their administration expenses.
All Member Societies and some District Groups have established web sites which provide information on local contacts, local nurseries, local plant reserves and on Australian plants suited to the local area.
Further information on joining the Society can be found here.
Because the Member Societies are independent, they operate under several different names as follows:
| Name | Applies in...... |
| Native Plants Queensland | Queensland |
| Australian Plants Society | New South Wales, South Australia, Tasmania, Victoria |
| Australian Native Plants Society | Canberra |
| Wildflower Society of Western Australia | Western Australia |
| Top End Native Plants Society | Northern Territory |
For simplicity, the term "The Society" is used on this site to refer to ANPSA and to each of the Member Societies.
All Member Societies offer a number of common benefits including Regional Meetings, featuring expert speakers, and a variety of field trips and excursions. Other services and benefits offered may vary slightly between the Regions as do the publications provided to members, as outlined below.
Please refer to the web sites of each Member Society (above) for further information about membership benefits.
If you are contemplating joining from outside Australia, it would be preferable to select a Member Society which operates in a similar climate zone to your own place of residence. The following is a rough guide, however, it should be realised that some Regions cover several zones:
| Climatic Zone | Features | ANPSA Member Societies |
| Alpine | Low winter temperatures with frosts and snow; cool summers | Tasmania |
| Cool Temperate | Low winter temperatures with frosts during the cooler months; warm summers | Tasmania |
| Temperate | Low winter temperatures with frosts during the cooler months; warm to hot summers | Canberra |
| Warm Temperate | Mild winters with light frosts away from the coast; hot summers | New South Wales, Victoria |
| Mediterranean | Cool to cold, wet winters; hot summers with low rainfall | South Australia, Victoria, Western Australia |
| Sub-tropical | Mild, dry winter and reliable summer rainfall; high summer humidity | New South Wales, Queensland |
| Tropical | High temperatures and humidity all year round; heavy summer rainfall | Queensland, Western Australia, Top End |
| Inland | Very hot, dry summers with cold nights; cold winters | All except Canberra and Tasmania |
Further information on Australian climate zones is available from the Australian Bureau of Meteorology.
District Groups are located throughout Australia and allow Society members in a particular regional centre to take part in activities with other local members. Currnt local groups are listed below - further details regarding these groups can be found on the Regional websites - see our Links page
Canberra
Because of the relatively small size of the Australian Capital Territory, there are no District Groups in the Canberra Region.
New South Wales
Armidale and District, Blue Mountains, Central Coast, Central West (Bathurst, Orange, Dubbo), Coffs Harbour, East Hills, Hunter Valley, Macarthur (Campbelltown/Camden), Menai, Newcastle, North Shore (Sydney), Northern Beaches (Manly to Palm Beach), Nowra, Parramatta and the Hills, South East Region (south coast), Southern Highlands (Mittagong, Moss Vale), Southern Tablelands (Goulburn district), Sutherland, Tamworth.
Northern Territory
Australian Plants Society Alice Springs - this is an independent organisation and is not affiliated with ANPSA (Contact: C/- Olive Pink Botanic Garden, Tuncks Rd Alice Springs NT 0870. Email: apsalicesprings@yahoo.com.au).
Queensland
Brisbane (South Side), Brisbane (Western Suburbs), Brisbane (Daytime), Caboolture Daytime, Cairns, Gladstone,Gold Coast, Innisfail, Ipswich, Kingaroy and Districts, Logan River, Mackay, Pine Rivers, Rockhampton, Samford, Sunshine Coast, Toowoomba, Tablelands, Townsville, Warwick.
South Australia
Brinkworth, Eastern Eyre Peninsula, Fleurieu (Victor Harbour), Karoonda, Kimba and Districts, Northern Yorke Peninsula (Kadina), Para Districts (Gawler), Parrakie, Port Augusta, Southern Eyre Peninsula (Port Lincoln).
Tasmania
Kingborough, Hobart, Northern, North West.
Victoria
Albury/Wodonga, Ballarat, Bendigo, Colac-Otway, East Gippsland (Bairnsdale), Echuca-Moama, Foothills (Melbourne), Geelong, Grampians, Hamilton, Keilor Plains, Latrobe Valley, Loddon-Murray, Maroondah, Melton & Bacchus Marsh, Mildura, Mitchell (Kilmore), Mornington Peninsula, Shepparton, South East Melbourne, South Gippsland, Strathbogie Ranges, Wangaratta, Warrnambool, Waverley, West Gippsland, Wilson Park (Berwick), Wimmera, Wyndham, Yarra Yarra.
Western Australia
Albany, Armadale, Avon, Darling Range, Eastern Hills, Kulin, Lesueur, Merredin, Murdoch, Northern Suburbs, Perth. There are also several affiliated groups.