Inflorescence, floral, fruit and seed morphology. Flowers solitary, or aggregated in ‘inflorescences’. The ultimate inflorescence units when present, apparently cymose. Inflorescences terminal, or axillary, or leaf-opposed (occasionally). Flowers small to medium-sized; fragrant (e.g. Nicotiana), or malodorous (e.g. Anthocercis, if so considered), or odourless (mostly); regular (usually, more or less), or somewhat irregular to very irregular. The floral irregularity (when noticeable) involving the perianth, or involving the androecium, or involving the perianth and involving the androecium. Flowers mostly (4–)5 merous; cyclic; tetracyclic. Free hypanthium absent. Hypogynous disk usually present; intrastaminal.