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This species is accepted, and its native range is Assam (Meghalaya).

[GB]
Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1000 cm long; 60-80 mm diam.; woody; with aerial roots from the nodes. Culm-internodes terete; thick-walled. Lateral branches dendroid. Branch complement three. Culm-sheaths deciduous; 18-20 cm long; 0.9 times as long as wide; coriaceous; hispid; with appressed hairs; with dark brown hairs, or black hairs; convex at apex; auriculate; with 1 mm high auricles; with 4-5 mm wide auricles; ciliate on shoulders. Culm-sheath ligule 4-5 mm high; dentate. Culm-sheath blade triangular; erect; glabrous on surface; acuminate. Leaves cauline; 9-10 per branch. Leaf-sheath oral hairs ciliate. Leaf-sheath auricles absent. Ligule an eciliate membrane. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 17-27 cm long; 24-30 mm wide. Leaf-blade midrib conspicuous. Leaf-blade venation with 20-22 secondary veins. Leaf-blade surface pilose; sparsely hairy; hairy abaxially. Leaf-blade margins scabrous.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in untidy tufts; dense; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 5-8 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; 3 mm long; glabrous.
Fertile
Spikelets comprising 5-8 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; 3 mm long; glabrous.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes several; 1-2 empty glumes; persistent; similar; shorter than spikelet. Lower glume ovate; 6-8 mm long; coriaceous; without keels. Lower glume margins ciliate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 11-12 mm long; without keel. Lemma lateral veins with cross-veins (obscure). Lemma margins ciliolate. Lemma apex acute; pubescent (inside). Palea oblong; 8-9 mm long; 11 -veined; 2-keeled. Palea keels wingless; ciliate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; 3-4 mm long; membranous; veined; ciliate. Anthers 6; 5-6 mm long. Stigmas 3; plumose. Styles 3-5 mm long. Ovary umbonate.
Distribution
Asia-tropical: India.
Reference
Bambuseae. Kumari & Singh 2011.

Native to:

Assam

Bambusa nairiana P.Kumari & P.Singh appears in other Kew resources:

First published in Bull. Bot. Surv. India 50: 13 (2008 publ. 2009)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0