Tristachya lualabaensis (De Wild.) J.B.Phipps

Tufted perennial; culms 70–140 cm. high, not bulbous at the base; basal leaf-sheaths glabrous or pubescent.. Leaf-blades flat, 6–30 cm. long, 2–6 mm. wide.. Panicle linear, loosely contracted, 8–25 cm. long, the spikelets ternate (occasionally paired); pedicels unequal, free, mostly 2–10 mm. long.. Spikelets narrowly lanceolate, 10–20 mm. long, yellowish brown, glabrous; lower glume ovate-elliptic, 1/2–2/3 as long as the spikelet; upper glume lanceolate, as long as the spikelet; upper lemma 9–13 mm. long (including lobes), pubescent, bilobed, the lobes 2–5 mm. long and acuminate to a setaceous tip; awn 1.5–3.5 cm. long; callus 2 mm. long.. Caryopsis glabrous.