IAPT is a non-profit organisation founded in 1950 to promote, support and facilitate taxonomic, systematic and nomenclatural research into algae, fungi and plants. It currently has nearly 1000 members, in many countries around the world.
The Association is managed by a Council of officers elected by its members. Councillors serve a six-year term, as set out in the IAPT Constitution. The IAPT Council is supported by a secretariat, with offices in Bratislava (Slovakia) and Washington DC (USA).
IAPT works with other organisations to promote biological sciences internationally, and is a member of the International Union of Biological Societies (IUBS), a non-profit, non-governmental peak body founded in 1919.
IAPT also works closely with national organisations throughout the world that have similar goals.
IAPT members are based in 60 countries of the world, and conduct research in many more.