Himalayacalamus hookerianus (Munro) Stapleton
  • Bamboo Soc. Newsl. 17: 21 (1993) 


Notes: Distribution: Nepal to Assam

General Description

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms 500-900 cm long; 17-36 mm diam.; woody; without nodal roots. Culm-internodes terete; thin-walled; 15-20 cm long; glaucous; distally pruinose. Lateral branches dendroid. Branch complement many. Culm-sheaths 30-40 cm long; 4 times as long as wide; chartaceous; truncate at apex. Culm-sheath ligule 3-5 mm high; dentate. Culm-sheath blade linear; 7-15 cm long. Leaf-sheaths striately veined; glabrous on surface; outer margin hairy. Leaf-sheath oral hairs lacking. Ligule an eciliate membrane; acute. Collar dark; with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.3-0.5 cm long. Leaf-blades linear, or lanceolate; 15-30 cm long; 12-36 mm wide; glaucous; glandular. Leaf-blade midrib prominent beneath. Leaf-blade venation with 8-16 secondary veins; without cross veins. Leaf-blade surface scabrous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate; filiform; antrorsely scabrous. INFLORESCENCE Synflorescence on a separate leafless culm. Inflorescence composed of racemes; subtended by bracts. Racemes 1; single; arcuate. Spikelets solitary. Fertile spikelets pedicelled. FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension, or with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8-9 mm long; breaking up at maturity; disarticulating below each fertile floret. GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 2-3 mm long; chartaceous; without keels; 3 -veined. Lower glume surface pubescent; hairy at apex. Lower glume apex acute. Upper glume oblong; 5 mm long; chartaceous; without keels; 5 -veined. Upper glume apex acute; mucronate. FLORETS Fertile lemma ovate; 7 mm long; chartaceous; without keel; 3 -veined. Lemma lateral veins prominent. Lemma surface scabrous; rough between veins. Palea 2 -veined. Palea apex ciliate. Apical sterile florets distinct from fertile; 1 in number; rudimentary. FLOWER Lodicules 3; veined; ciliate. Anthers 3. Ovary glabrous. FRUIT Caryopsis with adherent pericarp; ellipsoid; 7.5 mm long; apex unappendaged. DISTRIBUTION Asia-tropical: India. NOTES Bambuseae. Gamble 1995.

Distribution Map

 
  • Native distribution
Found in
  • Asia-Tropical Indian Subcontinent Assam
  • East Himalaya
  • Nepal

  Bibliography

  • 1 Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 2 Noltie, H.J. (2000). Flora of Bhutan 3(2): 457-883. Royal Botanic Gardens, Edinburgh.
  • 3 Press, J.R. et al. (2000). Annotated Checklist of the Flowering Plants of Nepal: i-x, 1-430. Natural History Museum, London.

 Information From

GrassBase - The Online World Grass Flora
http://www.kew.org/data/grasses-db/
Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora. http://www.kew.org/data/grasses-db.html. [accessed 24 January 2012; 14:30 GMT]
  • A © Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
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