Unarmed annual or perennial herbs. Flowers 1-few, extra-axillary or leaf-opposed. Calyx entire, truncate or shortly dentate, not accrescent. Corolla rotate to broadly campanulate, variously coloured.
Stamens 5, ± exserted; anthers dehiscing by longitudinal splits. Fruit a berry, extremely variable in size, shape and colour. Worldwide: 10 species in tropical America Zimbabwe: 2 cultivated taxa. |
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