Until the early 21st century, the order was only rarely recognised by
systems of classification (an exception is the
Reveal system). The
APG system, of 1998, did not recognize such an order. The
APG II system, of 2003, does accept this order and places it among the basal angiosperms, that is: it does not belong to any further clade. APG II uses this circumscription: • order Austrobaileyales • family
Austrobaileyaceae, one species of
woody vines from
Australia • family
Schisandraceae [+ family
Illiciaceae], several dozen species of
woody plants, found in
tropical to
temperate regions of
East and
Southeast Asia and the
Caribbean. The best known of those is
Star anise. • family
Trimeniaceae, half-a-dozen species of
woody plants found in
subtropical to
tropical Southeast Asia, eastern
Australia and the
Pacific Islands Note: "+ ..."=optional segregate family, that may be split off from the preceding family. The
Cronquist system, of 1981, also placed the plants in families Illiciaceae and Schisandraceae together, but as separate families, united at the
rank of order, in the order Illiciales. == References ==