polyphylly
/ˈpɒlɪfɪli/Botany rare
noun
Originally: the condition of having a greater than normal number of members in a floral whorl. Later: the condition of having numerous leaves.
Origin
Mid 19th century; earliest use found in Maxwell Tylden Masters (1833–1907), botanist and journal editor. From poly- + -phylly, after polyphyllous.