Perennial herbs, subshrubs or shrubs. Stipules divided into filiform segments. Leaves opposite or in whorls of 3-5. Flowers bisexual, mono-, di- or (rarely) tri-morphic, mostly in branched terminal cymose inflorescences. Calyx lobes usually 5, either equal or unequal with 1-3 larger than the others, sometimes leaf-like. Ovary 2-locular. Capsule ovoid or obtriangular, ribbed, beaked, opening at apex. Seeds minute. Worldwide: 34 species from Africa to Arabia and Madagascar Burundi: 7 taxa. |
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| Species | Content | |
| herbacea (Hiern) K.Schum. | ||
| lanceolata (Forssk.) Deflers [Agg] | ||
| longiflora Oliv. | ||
| micrantha Baker subsp. wyliei (N.E. Br.) Verdc. | Description, Image | |
| purpurea Oliv. [Agg] | ||
| schumanniana K. Krause | ||
| zanzibarica (Klotzsch) Vatke [Agg] |