Elytrostachys McClure
  • J. Wash. Acad. Sci. 32: 173 (1942) 

Notes: Distribution: C. America to Venezuela

General Description

HABIT Perennial. Rhizomes short; pachymorph. Culms scandent; 500-1000-1500 cm long; woody. Culm-internodes terete. Culm-nodes flush with internodes (1/1). Lateral branches dendroid. Branch complement many; in a clump; with 1 branch dominant; thinner than stem. Culm-sheaths persistent (1/1); without auricles (1/1). Culm-sheath blade linear (1/1). Ligule an eciliate membrane (1), or absent (1). Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate. INFLORESCENCE Synflorescence bractiferous; scanty; with spathaceous subtending bracts; with axillary buds at base of spikelet. Fertile spikelets sessile. FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension, or with diminished florets at the apex. Spikelets lanceolate; subterete; 14-25.25-40.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes brief up to lowest fertile floret (1), or elongated below proximal fertile floret. Rhachilla elongation stout (1), or slender (1). GLUMES Glumes two, or several (1); persistent; shorter than spikelet (1), or reaching apex of florets (1). Lower glume lanceolate (1), or ovate (1); 0.7-0.75-0.8 length of upper glume; chartaceous; without keels; 13 -veined (1/1). Lower glume apex obtuse (1), or acute. Upper glume lanceolate (1), or elliptic (1); 1.1 length of adjacent fertile lemma; chartaceous; without keels; 19 -veined (1/1). Upper glume apex obtuse (1), or acute (1), or acuminate (1). FLORETS Fertile lemma lanceolate; chartaceous; without keel; 7 -veined (1/1). Lemma surface smooth (1), or granulose (1). Lemma apex acute. Palea 1 length of lemma; chartaceous; 6 -veined (1/1). Palea keels approximate. Apical sterile florets 0 in number (1), or 1 in number; barren; linear. FLOWER Lodicules 3; glabrous (1), or ciliate (1). Anthers 6. Stigmas 2. Ovary umbonate; pubescent on apex (1/1). FRUIT Caryopsis with adherent pericarp. DISTRIBUTION South America.

Distribution Map

  • Native distribution
Found in
  • Southern America Central America Costa Rica
  • Honduras
  • Nicaragua
  • Panamá
  • Northern South America Venezuela
  • Western South America Colombia


  • 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. 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. (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
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.