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This species is accepted, and its native range is Myanmar to Thailand, Andaman Islands.
A specimen from Kew's Herbarium

[GB]
Morphology General Habit
Perennial; culms solitary. Culms erect; 100-200 cm long; 2-4 mm diam.; with prop roots. Culm-internodes distally glabrous. Culm-nodes glabrous. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 3 mm long; membranous. Leaf-blades 20-45 cm long; 5-9 mm wide; aromatic. Leaf-blade surface scaberulous; rough on both sides; glabrous. Leaf-blade margins scabrous. Leaf-blade apex attenuate; filiform.
Morphology Reproductive morphology Inflorescences
Synflorescence compound; linear; 15-60 cm long; lax. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; enclosed. Spatheole elliptic; 2-3.5 cm long. Peduncle 0.5-0.7 cm long. Racemes 2; paired; deflexed; 1.7-2.3 cm long. Rhachis fragile at the nodes; semiterete; glabrous on surface; ciliate on margins. Rhachis internodes linear; 2.5 mm long. Rhachis internode tip transverse; cupuliform. Raceme-bases flattened; unequal (the longer measured). Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear; semiterete; ciliate.
Sterile
Basal sterile spikelets well-developed; 2 in number (lower raceme); 0 in upper raceme; with normal internodes; sessile and pedicelled. Basal sterile spikelet pedicels fused to internode in lower raceme; swollen in lower raceme. Basal sterile spikelets equalling fertile. Companion sterile spikelets well-developed; male; lanceolate; 5-5.5 mm long; as long as fertile; deciduous with the fertile. Companion sterile spikelet glumes chartaceous; pubescent; ciliate on margins; acute; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 4.5-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; inserted. Basal sterile spikelets well-developed; 2 in number (lower raceme); 0 in upper raceme; with normal internodes; sessile and pedicelled. Basal sterile spikelet pedicels fused to internode in lower raceme; swollen in lower raceme. Basal sterile spikelets equalling fertile. Companion sterile spikelets well-developed; male; lanceolate; 5-5.5 mm long; as long as fertile; deciduous with the fertile. Companion sterile spikelet glumes chartaceous; pubescent; ciliate on margins; acute; muticous. Companion sterile spikelet lemmas 2; enclosed by glumes.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 4.5-5 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; inserted.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 1 length of spikelet; chartaceous; without oil streaks; 2-keeled; keeled all along; keeled laterally; winged on keel; winged broadly; winged below. Lower glume primary vein ciliate. Lower glume intercarinal veins distinct; 2 in number. Lower glume surface with V-shaped depression; pubescent. Lower glume apex dentate; 2 -fid. Upper glume lanceolate; 1-keeled. Upper glume surface pubescent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret hyaline; 2 -veined. Fertile lemma lanceolate; hyaline; without keel. Lemma apex lobed; 2 -fid; incised 0.5 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 20-24 mm long overall; with twisted column. Column of lemma awn 12 mm long; glabrous. Palea absent or minute.
Morphology Reproductive morphology Flowers
Anthers 3; 1.5 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Asia-tropical: India and Indo-China.
Reference
Andropogoneae. Soenarko 1993.

Native to:

Andaman Is., Myanmar, Thailand

Cymbopogon clandestinus (Nees ex Steud.) Stapf appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Wallich, N. [8794], Myanmar K000245854 isotype

First published in Bull. Imp. Inst. Gr. Brit. 27: 458 (1929)

Accepted by

  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
  • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.

Literature

Kew Backbone Distributions

  • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590.
  • Pandey, R.P. & Dilwakar, P.G. (2008). An integrated check-list flora of Andaman and Nicobar islands, India Journal of Economic and Taxonomic Botany 32: 403-500.

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

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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