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. Burundi: 32 taxa. |
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| Species | Content | |
| aethiops (Welw. ex Ridl.) C.B. Clarke | ||
| africanus (S.S.Hooper) Reynders | ||
| capillifolius (A. Rich.) C.B. Clarke | Description, Image | |
| cuanzensis (Ridl.) C.B.Clarke | ||
| elegantulus (Steud.) C.B. Clarke | Description, Image | |
| fibrillosus (Kük.) Cherm. | ||
| flavescens (L.) P.Beauv. ex Rchb. | Description, Image | |
| flavidus (Retz.) T.Koyama | ||
| fluminalis (Ridl.) Rendle | ||
| gracillimus Chiov. | ||
| lanceolatus (Poir.) C.B. Clarke | Description, Image | |
| macranthus (Boeckeler) C.B.Clarke | ||
| macrostachyos (Lam.) J. Raynal | ||
| melas (Ridl.) C.B. Clarke | ||
| mortonii S.S.Hooper | ||
| mundii Nees | ||
| mundtii Nees [Agg] | Description, Image | |
| mundtii Nees var. mundtii | Description | |
| muricatus (Kük.) Napper | ||
| niger (Ruíz & Pav.) Cufod. | ||
| nigricans (Steud.) C.B. Clarke | ||
| nitidus (Lam.) J. Raynal | ||
| pauper (Hochst. ex A.Rich.) C.B.Clarke | ||
| pelophilus (Ridl.) C.B.Clarke | Image | |
| permutatus (Boeckeler) Napper | ||
| polystachyos (Rottb.) P.Beauv. var. polystachyos | Description | |
| polystachyos (Rottb.) P.Beauv. [Agg] | ||
| polystachyos (Rottb.) P. Beauv. var. laxiflorus (Benth.) C.B.Clarke | Description, Image | |
| pumilus (L.) Nees | ||
| sanguinolentus (Vahl) Nees | Description, Image | |
| unioloides (R. Br.) Urb. | Image | |
| xantholepis Nelmes |