Cymbopogon flexuosus

Cymbopogon flexuosus (Nees ex Steud.) W.Watson, Gaz. N. W. Ind. 392 1882. (Syn:Andropogon ampliflorus Steud.; Andropogon flexuosus Nees ex Steud.; Andropogon nardus var. flexuosus (Steud.) Hack.; Andropogon nardus subsp. flexuosus (Nees ex Steud.) Hack.; Cymbopogon flexuosus (Nees ex Steud.) Stapf; Cymbopogon flexuosus var. arunachalis S.C.Nath & K.K.Sarma; Cymbopogon flexuosus var. assamensis S.C.Nath & K.K.Sarma; Cymbopogon flexuosus var. sikkimensis Bor; Cymbopogon nardus var. flexuosus (Nees ex Steud.) Haines; Cymbopogon travancorensis Bor);
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Indian Subcontinent to Indo-China as per WCSP;
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Cymbopogon flexuosus also called Cochin Grass or Malabar Grass (Malayalam: ഇഞ്ചിപ്പുല്ല്(inchippullu) is a perennial grass native to India, Sri Lanka, Burma, and Thailand. It is placed in the genus Cymbopogon (lemon grasses).
Lemongrass essential oil is produced by steam distillation of the freshly cut leaves,^[1] or can be extracted using alcohol. It is believed to help with stress-related disorders, and has been shown to have antifungal and antimicrobial properties.^[2] Cymbopogon flexuosus completely inhibits all MRSA colony growth.^[3]
(From Wikipedia  on 14.4.13)
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Cymbopogon martinii/jawarancusa from Hamdard Herbal Garden, Delhi: This particular grass was labelled as C. jawarancusa at Hamdard University Herbal garden but looking at breadth of leaves and height of plant I have a feeling that this may be C. martinii and the other plant uploaded by me as C. martinii may in fact be C. jawarancusa. Please give your opinion.

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Cymbopogon flexuosus as per another thread.

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Poaceae, Cyperaceae and Juncaceae Week: Poaceae-Cymbopogon jawarncusa from Herbal Garden Hamdard Univ. Delhi-Pl validate-GS32 :  Attachments (3). 3 posts by 2 authors.
Cymbopogon jawarancusa photographed from Botanical Garde, Hamdard University, Delhi. Pl. validate.

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Cymbopogon flexuosus

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Poaceae, Cyperaceae and Juncaceae Week :: Poaceae » ¿ Cymbopogon flexuosus ? at Rajgurunagar for ID :: 29 MAY 10 04:08 :: DV45 :  1 image. 3 posts by 2 authors.

Poaceae
¿ Cymbopogon flexuosus ?

Place, Altitude: Rajgurunagar, near Pune … about 2000 ft asl
Date, Time: 29 MAY 10 … 04:08pm
Habitat: house garden
Habit: herb; about 1 m
Only single long view with no details may not be sufficient for ID

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Yes.

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May I request you to pl. post high resolution images.

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Adding originals.
2 images.

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Cymbopogon flexuosus

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May I request you for the high resolution images, for id.

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2 high resolution images.

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Please also check Cymbopogon martini

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Cymbopogon flexuosus

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MS Oct.,2021/42 Cymbopogon sp. ? for id.: 2 images.
Location : Reiek tlang
Altitude : ca.1,430 m.
Date : 23-11-2018
Habit : Annual grass ?
Habitat : Wild

Cymbopogon flexuosus

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MS,Oct.,2021/50 Cymbopogon sp. for id.: 2 images.
Location : Reiek tlang
Altitude : ca.1,400 m.
Date : 23-11-2018
Habit : Perennial grass
Habitat : Wild

Cymbopogon flexuosus

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MS,Oct,2021/45 Cymbopogon sp. for id.: 3 images.
Location : Vaphai
Date : 04-10-2018
Habit : Perennial grass
Habitat : Wild

Looks like Cymbopogon khasianus. Extreme closeup of spikelets required for identification of cymbopogons.

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May I request you to post a high res. image.

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2 very high res. images.

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Do these high res. images help with regard to your remarks

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Not exactly, but better. The lack of clear intracarinal nerves on lower glumes of sessile spikelet and presence of two depressions towards the bottom of the glumes suggests that it is Cymbopogon flexuosus which is yet to open up completely and not C.khasianus.

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References:

The Plant List  WCSP  GRIN   Annonated checklist of Flowering plants of Nepal  Flora of China  Wikipedia   Dave’s Garden