Annual or perennial herbs. Culms triangular. Inflorescence an open anthela or congested into a dense head. Spikelets with many, (>5) florets. Glumes distichous. Perianth 0. Stamens 2-3. Stigmas 2. Fruit a nutlet, laterally flattened. Worldwide: c. 70 species, widespread in warm regions. Rwanda: 8 taxa. |
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| Species | Content | |
| capillifolius (A. Rich.) C.B. Clarke | Description, Image | |
| elegantulus (Steud.) C.B. Clarke | Description, Image | |
| flavescens (L.) P.Beauv. ex Rchb. | Description, Image | |
| macrostachyos (Lam.) J. Raynal | ||
| mundtii Nees [Agg] | Description, Image | |
| niger (Ruíz & Pav.) Cufod. | ||
| nigricans (Steud.) C.B. Clarke | ||
| nitidus (Lam.) J. Raynal |