Lophatherum gracile

Lophatherum gracile Brongn., in L.I.Duperrey, Voy. Monde, Phan.: 50 (1831) (syn: Acroelytrum japonicum Steud. ; Acroelytrum urvillei (Steud.) Steud. ex Miq. ; Allelotheca urvillei Steud. ; Lophatherum annulatum Franch. & Sav. ; Lophatherum dubium Steud. ; Lophatherum elatum Zoll. & Moritzi ex Steud. ; Lophatherum gracile f. annulatum (Franch. & Sav.) T.Koyama ; Lophatherum gracile var. annulatum (Franch. & Sav.) Hack. ; Lophatherum gracile var. cochinchinense A.Camus ; Lophatherum gracile var. elatum (Zoll. & Moritzi ex Steud.) Hack. ; Lophatherum gracile f. elatum (Zoll. & Moritzi ex Steud.) T.Koyama ; Lophatherum gracile var. intermedium A.Camus ; Lophatherum gracile f. musashiense (Hiyama) T.Koyama ; Lophatherum gracile var. musashiense Hiyama ; Lophatherum gracile f. pilosulum (Steud.) T.Koyama ; Lophatherum gracile var. pilosulum (Steud.) Hack. ; Lophatherum gracile var. pilosum A.Camus ; Lophatherum gracile var. zeylanicum (Hook.f.) Bor ; Lophatherum humile Miq. ; Lophatherum japonicum (Steud.) Steud. ; Lophatherum lehmannii Nees ex Steud. ; Lophatherum multiflorum Steud. ; Lophatherum pilosulum Steud. ; Lophatherum zeylanicum Hook.f. );
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S. China to Japan and Tropical Asia, N. Queensland: Assam, Bangladesh, Borneo, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Jawa, Korea, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nansei-shoto, Nepal, New Guinea, Philippines, Queensland, Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Vietnam; Introduced into: Caroline Is., Marshall Is., Society Is. as per POWO;
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Perennials; culms 30-120 cm tall; tufted; nodes glabrous. Leaves 15-25 x 3-4 cm, elliptic, distinctly petiolate, glabrous; sheath keeled, glabrous; ligule a fimbriate membrane. Panicle 20-40 cm long, with distinct small clusters of racemes. Spikelets 10 x 2-3 mm, lanceolate; lower glume 3 x 1.5 mm, ovate, acute, 5-nerved; upper glume 4-5 x 2 mm, 5-nerved; fertile lemma 7 x 3 mm, 7-nerved, cuspidate; palea 6 x 2 mm, hyaline, 2-nerved; stamens 3; anthers 2 mm long; ovary obovoid; stigma plumose; sterile lemmas several, above the fertile lemma, 3 x 1.5 mm, terminated into bristles, epaleate.
Flowering and fruiting: August-December
Evergreen forests
(Attributions: Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi as per India Biodiversity Portal)
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SK 3893 14 November 2023 – Grass Poaceae: 5 very high res. images.

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References:
POWO  Catalogue of Life  BSI Flora of India Checklist  Flora of China  FOC illustration  Flora of peninsular India  India Flora Online  India Biodiversity Portal  Lucid Central