Steirachne Ekman
  • Ark. Bot. 10(17): 35 (1911) 


General Description

HABIT Perennial. Culms 15-30.5-47 cm long. Ligule a ciliolate membrane (1), or a fringe of hairs (1). Leaf-blades filiform (1), or linear. INFLORESCENCE Inflorescence a panicle. Panicle open. Spikelets solitary. Fertile spikelets pedicelled. FERTILE SPIKELETS Spikelets comprising 6 fertile florets (1), or 7-8 fertile florets, or 9-10 fertile florets (1); with diminished florets at the apex. Spikelets oblong; laterally compressed; 8-9.75-12 mm long; breaking up at maturity; disarticulating below each fertile floret, or below groups of fertile florets. Rhachilla internodes pubescent. GLUMES Glumes persistent; shorter than spikelet. Lower glume lanceolate; 0.5-0.75-1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 0.5-0.625-0.8 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume apex acuminate. FLORETS Fertile lemma ovate; membranous; keeled; 3 -veined. Lemma midvein without distinctive roughness (1), or scaberulous (1). Lemma lateral veins prominent (1/1). Lemma surface smooth (1), or asperulous (1). Lemma apex attenuate; awned; 1 -awned. Palea 1 length of lemma; 2 -veined. Palea keels winged; ciliolate. Apical sterile florets resembling fertile though underdeveloped. FLOWER Anthers 2. FRUIT Caryopsis with adherent pericarp; oblong (1/1). CLEISTOGENES AND VIVIPARY Cleistogenes present; in upper sheaths (1), or in lower sheaths (1). DISTRIBUTION South America.

  Bibliography

  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

 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
  • C See http://kew.org/about-kew/website-information/legal-notices/index.htm You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.