marsileaceous
/mɑːsɪlɪˈeɪʃəs/(also marsiliaceous) Botany rare
adjective
Belonging to or resembling the Marsileaceae, a family of aquatic ferns of which Marsilea is the type genus.
Origin
Mid 19th century; earliest use found in Robert Mayne (1808–1868). From Marsilea + -aceous, after scientific Latin Marsileaceae, family name.