Cymbopogon citratus

(DC.) Stapf
Common names: Lemon grass
Treatment appears in FNA Volume 25. Treatment on page 666.

Plants perennial. Culms to 200 cm, flexuous; nodes not swollen. Basal sheaths closely overlapping, gaping at maturity, forming somewhat flattened fans, glabrous, strongly glaucous; ligules 0.5-2 mm, truncate; blades to 90 cm long, 6.5-15 mm wide. Inflorescences to 60 cm, nodding; rames 10-25 mm; internodes and pedicels pilose on the margins and dorsal surface. Sessile spikelets of heterogamous pairs 5-6 mm; lower glumes shallowly concave below, flat distally, keels narrowly winged; upper lemmas entire or bidentate, unawned or with a 1-2 mm awn. Pedicellate spikelets 4-4.5 mm, unawned. 2n = 40, 60.

Distribution

Puerto Rico, Virgin Islands, Fla.

Discussion

Cymbopogon citratus is now known only in cultivation, even in Asia. Young shoots are used as a spice, and the oils are extracted for lemon oil. It has been grown in Florida.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Cymbopogon citratus"
filiform +
anatomy +  and kranz +
Mary E. Barkworth +
(DC.) Stapf +
1 (?) +  and 3 (?) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
slender +
keeled +  and rounded +
glaucous +  and glabrous +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
flattened +
swelling +
pseudopetiolate +
non-radiate +  and radiate +
well-developed +
0 cm0 mm <br />0 m <br /> (90 cm900 mm <br />0.9 m <br />) +
mostly +  and glabrous +
usually linear +  and lanceolate occasionally ovate +
reduced +
0.65 cm6.5 mm <br />0.0065 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
spikelike +
Lemon grass +
purple +  and reddish +
flexuous +
ascending +  and erect +
0 cm0 mm <br />0 m <br /> (200 cm2,000 mm <br />2 m <br />) +
not woody +
Puerto Rico +, Virgin Islands +  and Fla. +
flattened +
capillary +
sometimes longer +
concealing +
compressed +  and terete +
shorter or longer +
subtending +
compressed +  and rounded +
unequal +
uncinate +
bracteate +  and ebracteate +
pedunculate +  and multiple-stalked +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
solid +  and hollow +
photosynthetic +
smelling +  and aromatic +
coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
inconspicuous +
complex +  and simple +
concealed +  and prominent +
not swollen +
pedicellate +
heterogamous +
free +  and fused +
dry +  and fleshy +
elongate +
pedicellate +  and sessile +
in triplets +  and paired +
well-developed +
1 +, 4 +  and 7 +
homogamous +  and heterogamous +
compressed +
usually smaller +  and reduced +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
heterogamous +  and homogamous +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Cymbopogon citratus +
Cymbopogon +
species +
membranous +
sessile-pedicellate +
bidentate +  and entire +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +