polygalaceous
/pəˌlɪɡəˈleɪʃəs/Botany
adjective
Designating, belonging to, or characteristic of the plant family Polygalaceae, which includes the milkworts and is of almost worldwide distribution.
Origin
Mid 19th century; earliest use found in The Penny Cyclopaedia. From scientific Latin Polygala, genus name + -aceous, after scientific Latin Polygalaceae, family name, replacing earlier †Polygaleae.