Kahkaha çiçeğigiller

Herbs or shrubs, sometimes with latex, usually twining or prostrate, less often erect, sometimes parasitic with leaves reduced to scales (Cuscuta). Stipules 0, but stipule-like structures sometimes present. Leaves alternate. Flowers often large and showy, usually bracteate, 5-merous, actinomorphic, bisexual. Sepals 5. Corolla fused, entire or slightly 4-5-lobed, usually campanulate or funnel-shaped, less often cylindric. Styles 1-2, mostly terminal; stigmas 1-4. Ovary superior, entire or 2-4-lobed. Fruit usually a dry loculicidal capsule, sometimes indehiscent and baccate or nut-like. Seeds 1-4 (rarely 6 or 10).