a climbing or creeping woody vine, Bignonia capreolata, of the bignonia family, having yellow-red trumpet-shaped flowers and a stem that shows a crosslike arrangement in cross section.
big·no·ni·a (bĭg-nō'nē-ə) n. An evergreen, tendril-bearing woody vine (Bignonia capreolata) native chiefly to the southeast United States and having showy red-orange, trumpet-shaped flowers. Also called cross vine.
[New Latin Bignonia, genus name, after Jean Paul Bignon (1662-1743), French royal librarian.]