The class of herbaceous plants is Magnoliophyta. Magnoliophyta are divided into two classes. Magnoliopsida and Liliopsida.
1. Magnoliopsida: Magnoliopsida consists of 7 sub-classes, 56 classes and 315 genera. The sub-classes are:
(i) Magnolidae: The class number of Magnolidae is 7.
(ii) Hamamelidae: Class number of Hamamelidae is 8.
(iii) Ranunculidae: The class number of Ranunculidae is 3.
(iv) Caryophyllidae: The class number of Caryophyllidae is 3.
(v) Dillenidae: The class number of Dillenidae is 12.
(vi) Rosidae: Class number of Rosidae is 16.
(vii) Asteridae: Class number of Asteridae is 7.
2. Liliopsida: Liliopsida consists of 4 sub-classes, 20 classes and 65 genera. The sub-classes are:
(i) Alismatidae: Class number of Alismatidae is 3.
(ii) Lilidae: Class number of Lilidae is 3.
(iii) Arecidae: The class number of Arecidae is 5.
(iv) Commelinidae: The class number of Commelinidae is 6.