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.


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