Bignoniaceae
Fls perfect, irregular, showy, 5-merous, in compound cymes; calyx sts bilabiate; corolla campanulate to funnelform, sts bilabiate. Stamens epipetalous, us. 4, didynamous, with a posterior staminode; anthers opening lengthwise. Disk hypog.; ovary superior, 2-carpelled; placentae parietal or on septum, ovules ∞. Style simple, stigma 2-lobed. Fr. us. a 2-valved capsule. Seeds often winged, without endosperm. Lianes, shrubs or trees with opp., decussate, simple or pinnately compound, exstipulate lvs. A mainly tropical family of c. 110 genera and 750 spp.
