|hed.ərō|filəs adjective
Etymology: heter- + -phyllous
1. : having the foliage leaves of more than one form on the same plant or stem
many eucalypts, pondweeds, and crowfoots are heterophyllous
— opposed to isophyllous
2. : having two or more forms of foliation of the septal margins
heterophyllous ammonites
• het·er·o·phyl·ly ˈ ̷ ̷ ̷ ̷ ̷ ̷ˌfilē noun -es