Psammochloa villosa (Trin.) Bor
  • Kew Bull. 6: 191 (1951) 


General Description

HABIT Perennial. Rhizomes elongated. Butt sheaths coriaceous; persistent and investing base of culm; with fibrous dead sheaths. Culms scandent; 50-150 cm long. Lateral branches lacking. Ligule an eciliate membrane; 3-8 mm long. Leaf-blades convolute; 30-50 cm long; 5-10 mm wide; stiff. Leaf-blade surface ribbed; pubescent; densely hairy; hairy adaxially. Leaf-blade margins ciliate. Leaf-blade apex attenuate. INFLORESCENCE Inflorescence a panicle. Panicle contracted; linear; 30-60 cm long; 2-4 cm wide. Primary panicle branches bearing spikelets almost to the base. Panicle branches smooth, or scabrous; glabrous, or pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels cuneate; 5-10 mm long; scabrous. FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed, or subterete; 10-11 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose; obtuse. GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 10 mm long; 0.9 length of upper glume; membranous; 1-keeled; keeled above; 5-7 -veined. Lower glume surface scabrous. Lower glume apex truncate, or obtuse. Upper glume lanceolate; 11 mm long; 1.1 length of adjacent fertile lemma; membranous; with hyaline margins; 1-keeled; keeled above; 5-7 -veined. Upper glume surface scabrous. Upper glume apex truncate, or obtuse. FLORETS Fertile lemma elliptic; subterete; 10 mm long; chartaceous; without keel; 9 -veined. Lemma surface villous. Lemma margins flat; exposing palea. Lemma hairs white; 2.5 mm long. Lemma apex dentate; 2 -fid; muticous, or awned; 1 -awned. Principal lemma awn from a sinus; 0-10 mm long overall; deciduous. Palea elliptic; 1 length of lemma; chartaceous; 5-7 -veined; without keels. Palea surface pilose. Palea apex truncate. FLOWER Lodicules 3; oblanceolate; membranous; ciliate; obtuse. Anthers 3; 7.5 mm long; anther tip penicillate. Stigmas 2. DISTRIBUTION Asia-temperate: China and Mongolia. NOTES Stipeae. Bor.

Distribution Map

 
  • Native distribution
Found in
  • Asia-Temperate China China North-Central
  • Inner Mongolia
  • Qinghai
  • Xinjiang
  • Mongolia Mongolia

  Bibliography

  • 1 Grubov, V.I. (2008). Key to the vascular plants of Mongolia (with an atlas): 1-503. Academy of Sciences, Mongolian People's Republic, Ulaan Bator.
  • 2 Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 3 Wu, Z. & Raven, P.H. (eds.) (2006). Poaceae. Flora of China 22: 1-733. Missouri Botanical Garden Press, St. Louis.

 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.
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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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