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Annuals or perennials. Inflorescence composed of racemes, these digitate or borne upon an elongated central axis; spikelets 2-3(-5)-nate, rarely solitary. Spikelets pedicellate, awnless; lower floret barren; upper floret bisexual; lower glume small or 0; upper glume as long as the spikelet or shorter, exposing the upper lemma; lower lemma usually as long as the spikelet, typically with longitudinal lines of hairs between the nerves; upper lemma chartaceous to cartilaginous, longitudinally striate. Worldwide: c. 220 species in warm and tropical regions Botswana: 19 taxa. The larvae of the following species of insect eat species of this genus:
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| Species | FZ divisions | Content |
| acuminatissima Stapf | Description | |
| brazzae (Franch.) Stapf | N | Description |
| ciliaris (Retz.) Koeler | Description | |
| debilis (Desf.) Willd. | Description | |
| eriantha Steud. | Description | |
| eylesii C.E. Hubb. | Description | |
| gayana (Kunth) Stapf ex A. Chev. | Description | |
| longiflora (Retz.) Pers. | Description | |
| maitlandii Stapf & C.E. Hubb. | Description | |
| maniculata Stapf | Description | |
| milanjiana (Rendle) Stapf | Description | |
| natalensis Stent | ||
| nuda Schumach. | ? | Description |
| perrottetii (Kunth) Stapf | N | Description, Image |
| remotigluma (De Winter) Clayton | N | Description |
| sanguinalis (L.) Scop. | N,SE | Description |
| scalarum (Schweinf.) Chiov. | N | Description |
| seriata Stapf | Description | |
| velutina (Forssk.) P. Beauv. | N,SE | Description, Image |
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