polyphyllous
/ˌpɒlɪˈfɪləs/Botany
adjective
1Of a perianth, calyx, corolla, etc.: having or consisting of many separate members; not united. Opposed to monophyllous, gamophyllous. Compare polypetalous, polysepalous. Now chiefly historical.
2Of a plant, thallus, leaf, etc.: having or consisting of many leaves or leaf-like parts.
Origin
Late 18th century; earliest use found in Thomas Martyn (1735–1825), botanist. From poly- + -phyllous, probably after scientific Latin polyphyllus in plant names.