Cymbopogon Spreng.
Lower glume of sessile floret with 2 distinct keels. Awn inconspicuous or absent Cymbopogon
Racemes slightly hairy to almost glabrous, 15–20 mm long, sharply reflexed and divergent at maturity. Lemma of the sessile spikelet awnless or with a fine awn. Erect, tufted perennial with a purplish tinge, up to 1 m high. Leaf blades up to 25 cm long, inrolled, 2–3 mm wide; ligule membranous, sinuate. Widespread. Woodlands, forests, pastures and sand dunes. Fl. spring–summer. Barbwire Grass Cymbopogon refractus
Racemes ± densely villous hairy, 15–25 mm long, reflexed at maturity. Lemma of the sessile spikelet with an awn from between the lobes up to 6 mm long or sometimes absent. Aromatic, tufted perennial up to 1 m high. Leaf blades up to 35 cm long and 2.5 mm long, folded or with revolute margins. Drier western parts of the region in woodlands Cymbopogon obtectus