Annual herb (in ours). Leaves alternate. Modified sterile flowers 0. Inflorescence a spike-like thyrse, not white-woolly. Tepals 5, free, ± glabrous or pilose near the base only. Stamens 5. Stigmas 2-3. Capsule circumscissile. Seeds flattened, black, shiny. Worldwide: 45 species in the tropics of both New and Old Worlds. Malawi: 3 taxa. |
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| Species | FZ divisions | Content |
| argentea L. | S | |
| schweinfurthiana Schinz | S | |
| trigyna L. | N,C,S | Description, Image |