| Austrobaileyales | |
|---|---|
 | |
| Schisandra rubriflora | |
Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Order: | Austrobaileyales Takht. exReveal[2][3] |
| Families | |
Austrobaileyales is anorder offlowering plants consisting of about 100[4] species ofwoody plants growing as trees, shrubs andlianas. A well known example isIllicium verum, commonly known asstar anise. The order belongs to the group ofbasal angiosperms, the ANA grade (Amborellales,Nymphaeales, and Austrobaileyales), which diverged earlier from the remaining flowering plants. Austrobaileyales is sister to all remaining extant angiosperms outside the ANA grade.[5][6][7]
The order includes just three families of flowering plants, the Austrobaileyaceae, amonotypic family containing the sole genus,Austrobaileya scandens, a woody liana, theSchisandraceae, a family of trees, shrubs, or lianas containingessential oils, and theTrimeniaceae, essential oil-bearing trees and lianas.[3]
Until the early 21st century, the order was only rarely recognised bysystems of classification (an exception is theReveal system).
TheAPG system, of 1998, did not recognize such an order. TheAPG 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:
Note: "+ ..."=optional segregate family, that may be split off from the preceding family. TheCronquist system, of 1981, also placed the plants in families Illiciaceae and Schisandraceae together, but as separate families, united at therank of order, in the order Illiciales.
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| Thephylogeny of the flowering plants, as of APG III (2009).[2] |
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| Internal relationship ofAustrobaileyales.[3] |
