Commelinidae
Commelinidae is a botanical name at the rank of subclass. Circumscription of the subclass will vary with the taxonomic system being used (there are many such systems); the only requirement being that it includes the family Commelinaceae. A well-known system that did use this name is the Cronquist system (1981), but it was also used by the Takhtajan system:
In the Takhtajan system
In the Takhtajan system treats this as one of six subclasses within the class Liliopsida (=monocotyledons). It consists of
- subclass Commelinidae
- superorder Bromelianae
- order Bromeliales
- order Velloziales
- superorder Pontederianae
- order Philydrales
- order Pontederiales
- order Haemodorales
- superorder Zingiberanae
- order Musales
- order Lowiales
- order Zingiberales
- order Cannales
- superorder Commelinanae
- order Commelinales
- order Mayacales
- order Xyridales
- order Rapateales
- order Eriocaulales
- superorder Hydatellanae
- order Hydatellales
- superorder Juncanae
- superorder Poanae
- order Flagellariales
- order Restionales
- order Centrolepidales
- order Poales
- superorder Bromelianae
Commelinidae in the Cronquist system
In the Cronquist system treats this as one of four subclasses within the class Liliopsida (=monocotyledons). It consists of:
- subclass Commelinidae
- order Commelinales
- order Eriocaulales
- order Restionales
- order Juncales
- order Cyperales
- order Hydatellales
- order Typhales
APG system
The APG II system does not use formal botanical names above the rank of order; most of the plants involved here are assigned to the clade commelinids in the monocots (its predecessor, the APG system used the clade commelinoids).[1][2][3]