perfoliate

adjective

per·​fo·​li·​ate ˌpər-ˈfō-lē-ət 

ˈpər-

: having the basal part naturally united around the stem

a perfoliate leaf of a honeysuckle

Word History

Etymology

New Latin perfoliata, an herb having leaves pierced by the stem, from Latin per through + foliata, feminine of foliatus foliate

First Known Use

1670, in the meaning defined above