Plants perennial. Culms to 150 cm, erect or geniculate; nodes often
swollen. Basal sheaths glabrous, smooth, whitish-green; ligules
2-6 mm, truncate to acute; blades to 30 cm long, 1.5-4 mm wide, whitish.
Inflorescences 15-40 cm, erect; rames 13-22 mm; internodes
and pedicels densely pilose on the margins and dorsal surface. Sessile
spikelets of heterogamous pairs 4.5-5.5 mm; lower glumes lanceolate,
shallowly concave distally, sharply keeled, keels not winged; upper lemmas
awned, awns 7-10 mm. Pedicellate spikelets about 6 mm. 2n = 20.
Cymbopogon jwarancusa is native to Asia, where it is grown for perfume and
as a medicine for fevers. It is grown as an ornamental in the United States, and
may persist for a considerable time after planting in the warmest parts of the