Annuals or perennials. Leaves: lamina variable, from linear to ovate. Inflorescence a panicle, usually much branched, but occasionally ± contracted about the primary branches. Spikelets dorsally flattened, rarely slightly gibbous; lower glume usually shorter than (rarely equal to) the spikelet; upper glume as long as, the spikelet, often with a stipe-like internode between the glumes; lower floret male or barren; its lower lemma resembling the upper glume; upper lemma crustaceous; margin involute and clasping only the edges of the palea. A generally recognisable genus but the following could be confused with it: Brachiaria deflexa, Eriochloa meyeriana, Tricholaena monachne. Worldwide: 500 species or more in tropical and warm temperate zones Botswana: 29 taxa. Insects associated with this genus:
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| Species | FZ divisions | Content |
| arcurameum Stapf | SE | Description |
| atrosanguineum A. Rich. | N | Description |
| bechuanense Bremek. & Oberm. | N,SW,SE | Description |
| coloratum L. | N,SW,SE | Description |
| deustum Thunb. | Description | |
| dregeanum Nees | Description, Image | |
| fluviicola Steud. | N | Description |
| funaense Vanderyst | N | |
| gilvum Launert [DD] | N | Description |
| graniflorum Stapf | N | Description |
| heterostachyum Hack. | N | Description, Image |
| hirtum Lam. | N | |
| hymeniochilum Nees | N | Description |
| kalaharense Mez | N,SW,SE | Description |
| lanipes Mez | SW,SE | |
| madipirense Mez | SE | Description |
| massaiense Mez | ||
| maximum Jacq. | N,SW | Description, Image |
| merkeri Mez | Description | |
| miliaceum L. | Description | |
| novemnerve Stapf | Description | |
| parvifolium Lam. | N | |
| pilgerianum (Schweick.) Clayton [DD] | N,SE | |
| porphyrrhizos Steud. | N | Description |
| repens L. | N | Description |
| repentellum Napper | N | Description |
| schinzii Hack. | SE | Description |
| subalbidum Kunth | N | Description, Image |
| trichonode Launert & Renvoize | N | Description |