Drepanostachyum falcatum

Drepanostachyum falcatum (Nees) Keng f., J. Bamboo Res. 2(1): 16 1983. (Syn: Arundinaria falcata Nees; Arundinaria falcata var. glomerata Gamble; Arundinaria gracilis (Rivière & C.Rivière) Blanch.; Arundinaria interrupta Trin.; Arundinaria utilis Cleghorn; Bambusa falcata (Nees) E.Vilm. [Invalid]; Bambusa gracilis Rivière & C.Rivière; Chimonobambusa falcata (Nees) Nakai; Drepanostachyum falcatum var. glomeratum (Gamble) Pandey ex D.N.Tewari; Drepanostachyum falcatum var. sengteeanum Stapleton; Drepanostachyum gracile (Blanch.) S.Kumar; Fargesia falcata (Nees) T.P.Yi; Ludolfia falcata (Nees) Nees ex Munro; Pleioblastus falcatus (Nees) T.Q.Nguyen; Sinarundinaria falcata (Nees) C.S.Chao & Renvoize; Thamnocalamus falcatus (Nees) D.C.McClint. [Invalid]; Thamnocalamus ringala Falc. ex Munro [Invalid]);
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W. & Central Himalaya to Indo-China: Cambodia, Laos, Nepal, Vietnam, West Himalaya; Introduced into: Brazil South, Brazil Southeast, Brazil West-Central as per POWO;
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Common name: Himalayan Weeping Bamboo • Nepali: Sano nigalo, Diu nigalo

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Drepanostachyum falcatum (Nees) Keng f. (accepted name) : 2 posts by 2 authors. Attachments (4)

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Drepanostachymum falcatum?: request for id  : 2 images.

Yes it is Drepanostachyum falcatum – swollen nodes and ring below the node and greenish (glaucous in young) stems are the main characters to distinguish from other montane bamboos. It may flower anytime as the flowering cycle of 20-25 years is already due.

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Drepanostachyum falcatum (Nees) Keng f.:

This is labeled !

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References:
POWO  The Plant List Ver.1.1 WCSP  Grassbase  GRIN  IBIS Flora  Herbarium Catalogue  PFAF  Flowers of India