This order consists of 3 families, 5 genera. They are considered as one of the first lineages of the flowering plants. In the Apg3 it is placed before the Magnoliidae.
The only remedy known in homeopathy is Illicium verum but the exact species is uncertain. In the Plant theory it is placed together with the Magnoliidae.
- Austrobaileyaceae: Austrobaileya, woody vines, Australia.
- Schisandraceae, including Illiciaceae: Illicium, Kadsura, Schisandra; tropical to temperate, East and Southeast Asia, Caribbean.
- Trimeniaceae: Trimenia; 6 species; woody plants; tropical Southeast Asia, eastern Australia, Pacific Islands.