Gynerium Willd. ex P.Beauv.
  • Ess. Agrostogr.: 138 (1812) 


Notes: Distribution: Mexico to Trop. America

General Description

HABIT Perennial. Rhizomes elongated. Culms erect; reed-like; 300-1000 cm long. Ligule a ciliolate membrane. INFLORESCENCE Dioecious. Inflorescence a panicle. Panicle open. Spikelets solitary. Fertile spikelets pedicelled. FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 7-10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; glabrous, or pilose. GLUMES Glumes deciduous; exceeding apex of florets; recurved at apex. Lower glume linear; 0.3-0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume linear; 1.5-2 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex caudate. FLORETS Fertile florets female. Fertile lemma elliptic; membranous; without keel; 3 -veined. Lemma surface plumose. Lemma margins involute. Lemma apex caudate. Palea 0.25 length of lemma; 2 -veined. FLOWER Lodicules 2. Anthers 2. Stigmas 2. MALE Male inflorescence similar to female; a panicle. Male spikelets distinct from female. Male spikelet glumes 2. DISTRIBUTION Africa, or North America, or South America.

Distribution Map

 
  • Native distribution
  • Introduced distribution
Found in
  • Northern America Mexico Mexico Central
  • Mexico Gulf
  • Mexico Northeast
  • Mexico Southeast
  • Mexico Southwest
  • Southern America Brazil Brazil North
  • Brazil Northeast
  • Brazil South
  • Brazil Southeast
  • Brazil West-Central
  • Caribbean Cuba
  • Dominican Republic
  • Haiti
  • Jamaica
  • Leeward Is.
  • Puerto Rico
  • Trinidad-Tobago
  • Venezuelan Antilles
  • Windward Is.
  • Central America Belize
  • Costa Rica
  • El Salvador
  • Guatemala
  • Honduras
  • Nicaragua
  • Panamá
  • Northern South America French Guiana
  • Guyana
  • Suriname
  • Venezuela
  • Southern South America Argentina Northeast
  • Argentina Northwest
  • Paraguay
  • Western South America Bolivia
  • Colombia
  • Ecuador
  • Peru
Introduced into
  • Africa West Tropical Africa Ghana

  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.