Presence of morphologically different types of leaves at same node of a twig is called
Homoephylly or Isophylly : Presence of morphologically identical leaves in the same plant or twig.
Anisophylly : Presence of morphologically different types of leaves at the same node. Ex: Goldfussia, Selaginella, Salvinia.
Heterophylly : Presence of morphologically different types of leaves at different nodes of the twig. Ex : Limnophila, Ranunculus, Coriander, Bean