Kew Bull. 34: 560 (1980).- Type: Schweinfurth 2151, Sudan (holo- B, iso- K, P,W).
Panicum callopus Pilg., in E.J. 33: 46 (1902);
Brachiaria callopus (Pilg.) Stapf, FTA 9: 539 (1919);
Brachiaria stipitata C.E. Hubbard, Kew Bull. 1933: 498 (1933).- Type: Chevalier 34598, Guinea, mamou-Dalaba (holo- K).
Regional litterature: Fl. Agr. Congo Belge 2:106 (1934); FWTA: 443 (1972); FTEA: 555 (1982); Gram. Cameroun: 247 (1992); Poac. CI: 360, fig. (1995); Poac. Niger: 400, fig. (1999); Pl. Vasc. Guiné-Bissau: 166 (2006); Fl. Guinea Bissau: 136 (2008); Fl. Guinée: 456 (2009); Pl. Burkina Faso: 82 (2012); Fl. Chad (2013); Pl. Sudan & S Sudan: 127 (2015);
Description:
* Tufted annual of 0.2-1.2 m high. Culms erect, robust, spongious, rooting at the lower nodes; nodes numerous, hidden by the sheaths. Leaves oblong to linear, 2-30 cm long and 4-10 mm wide; ligule a line of white hairs; sheaths glabrous, keeled, lower sheaths often purplish, and sometimes pubescent.
* Inflorescence in oblong to linear panicles of 2-20 cm long, excerted with appressed or spreading racemes of 1-6 cm long with a triquetrous rhachis with tubercle based hairs; spikelets in 2, rarely 4 rows on.
* Spikelets ovate-elliptical, 3-4 mm long, scaberulous to spinulose; lowest internode of rhacheole forms a bead-like callus of 0.3-0.6 mm long, covered by the base of the lower glume. Glumes unequal, 0.5-1 mm long; the upper shorter to as long as spikelet. Lower lemma like the upper glume, with a hyaline spot between the central nerves; upper lemma elliptical, 3-3.5 mm long, subcoreace and glossy, rostrate.
Distribution West Africa: Senegal, Guinea Bissau, Guinea, Sierra Leone, Mali, Ivory Coast, Burkina Faso, Benin, Niger, Nigeria, Cameroon, Chad, Sudan, South Sudan.
Distribution world-wide: DRC, Tanzania.