Diodia

noun

Di·​o·​dia

dīˈōdēə

: a genus of mostly American weedy herbs of the family Rubiaceae with opposite leaves and small tubular solitary axillary flowers see buttonweed sense 1

Word History

Etymology

New Latin, from Greek diodos thoroughfare (from dia- + hodos way) + New Latin -ia; from the frequent growth of these plants by the wayside

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