Perennial herbs or subshrubs, usually with several stems from a woody rootstock. Leaves in whorls of 3-5(-6) or opposite, shortly petiolate (in ours). Inflorescences axillary, few-flowered. Calyx tube campanulate or subspherical. Corolla tube usually cylindric; lobes 5(-9). Ovary 3-4(-9)-locular. Fruit glabrous, containing 1-3(-9) pyrenes. Worldwide: 40-50 species in tropical Africa Burundi: 4 taxa. |
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| Species | Content | |
| ancylantha Schweinf. | Description, Image | |
| cienkowskii Schweinf. [Agg] | ||
| elskensii De Wild. [Agg] | ||
| stenophylla Welw. ex Hiern [Agg] |