Themeda villosa

Themeda villosa (Poir.) A.Camus, Fl. Indo-Chine 7: 364 1922. (Syn: Androscepia gigantea var. mutica Andersson .; Androscepia mutica (Steud.) Andersson ex Hook.f.; Anthistiria gigantea subsp. villosa (Poir.) Hook.f.; Anthistiria gigantea subsp. villosa (Poir.) Hook.; Anthistiria junghuhniana Nees ex Andersson; Anthistiria mutica Steud. [Illegitimate]; Anthistiria setosa Thunb. ex Andersson [Invalid]; Anthistiria villosa Poir.;

Aristaria mutica (Steud.) Hassk.; Heterelytron scabrum Jungh.; Themeda gigantea var. sundaica (Büse) A. Camus …; Themeda villosa (Poir.) T. Durand & B.D. Jacks.);
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Tropical & Subtropical Asia: Andaman Is., Assam, Bangladesh, Borneo, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, India, Jawa, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nepal, New Guinea, Nicobar Is., Philippines, Sri Lanka, Sulawesi, Sumatera, Thailand, Tibet, Vietnam, West Himalaya as per POWO;
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Themeda arundinacea (Roxb.) A.Camus (??) from Assam :  Attachments (6). 3 posts by 2 authors.

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It is Themeda villosa it the awn of the fertile spikelet is not well developed. Otherwise it is Themeda caudata owing to the false racemes being in cluster of 2 to 3. Kindly open up the spikelet to check. Themeda arundinacea has tubercle based bristles on the lower glumes of the involucral spikelets, whereas, this picture shows only puberulous hairs. All the three species and also Themeda longispatha were treated under Anthisthiria gigantea in the past.

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MS,Nov.,2021/66 Themeda sp. for id.: 3 images.
Location : Mualcheng

Themeda villosa ?

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Yes. Themeda villosa

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References:
POWO  The Plant List  GRIN  Annotated checklist of Flowering plants of Nepal  Flora of China  India Biodiversity Portal  RBG Kew: GrassBase