Eriochrysis P.Beauv.
  • Ess. Agrostogr.: 8 (1812) 


Notes: Distribution: Trop. & S. Africa to India, S. Mexico to Trop. America

General Description

HABIT Perennial. Rhizomes absent (9), or short (1). Culms erect (7/7); 12-81.1-220 cm long. Lateral branches lacking (1/1). Ligule an eciliate membrane (6), or a ciliolate membrane (2), or a ciliate membrane (2), or a fringe of hairs (1). Leaf-blades stiff (1), or firm (9). INFLORESCENCE Inflorescence composed of racemes. Racemes borne along a central axis; not compacted (6), or in a multilateral false spike (4); appressed (8), or ascending (2); linear, or oblong (7), or ovate (1); bearing few fertile spikelets (1), or many spikelets (9); bearing 2-4 fertile spikelets on each (1/1). Rhachis fragile at the nodes; subterete. Rhachis internodes linear. Spikelets in pairs. Fertile spikelets sessile and pedicelled; 2 in the cluster; the upper smaller. Pedicels linear; tip widened (1/5), or discoid (4/5). FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate (1), or elliptic (7), or oblong (2); dorsally compressed; 2.5-4.516-7 mm long; falling entire; deciduous from the base, or with accessory branch structures. Spikelet callus bearded; base truncate. GLUMES Glumes reaching apex of florets (4), or exceeding apex of florets (6); firmer than fertile lemma. Lower glume lanceolate (1), or elliptic (7), or oblong (2); chartaceous (2), or cartilaginous (3), or coriaceous (5); without keels; 5-7 -veined (1/1). Lower glume lateral veins obscure (3), or distinct (6), or prominent (1). Lower glume surface flat; smooth (9), or scabrous (1); glabrous (7), or pubescent (1), or pilose (1), or villous (2). Lower glume apex entire (9), or dentate (1); 3 -fid (1/1); truncate (2/7), or obtuse (3/7), or acute (3/7). Upper glume lanceolate (1/6), or elliptic (5/6); chartaceous (2/5), or cartilaginous (1/5), or coriaceous (2/5); 1-keeled (5/5); 5-7 -veined (1/1). Upper glume primary vein eciliate (9), or ciliate (1). Upper glume surface glabrous, or pilose (1). Upper glume apex acute (4/5), or acuminate (1/5). FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate (6), or oblong (4); hyaline; 0 -veined (6/8), or 2 -veined (2/8); obtuse (1/1), or acute (1/1). Fertile lemma linear (1), or lanceolate (6), or oblong (1), or ovate (3); hyaline; without keel; 0 -veined (9/9). Lemma surface glabrous (9), or puberulous (1); without hair tufts (9), or with conspicuous apical hairs (1). Lemma margins eciliate (1), or ciliolate (1), or ciliate (8). Lemma apex attenuate (1/1). Palea absent or minute. FLOWER Lodicules 2 (1/1). Anthers 3. FRUIT Caryopsis oblong (2/2). DISTRIBUTION Africa (3), or Tropical Asia (1), or North America (1), or South America (6).

Distribution Map

 
  • Native distribution
Found in
  • Africa East Tropical Africa Kenya
  • Tanzania
  • Uganda
  • Northeast Tropical Africa Ethiopia
  • South Tropical Africa Angola
  • Malawi
  • Zambia
  • Zimbabwe
  • Southern Africa Botswana
  • Cape Provinces
  • KwaZulu-Natal
  • Northern Provinces
  • Swaziland
  • West Tropical Africa Benin
  • Ghana
  • Guinea
  • Ivory Coast
  • Nigeria
  • Senegal
  • West-Central Tropical Africa Burundi
  • Cameroon
  • Central African Republic
  • Congo
  • Gabon
  • Rwanda
  • Zaire
  • Asia-Tropical Indian Subcontinent India
  • Northern America Mexico Mexico Southeast
  • Mexico Southwest
  • Southern America Brazil Brazil North
  • Brazil Northeast
  • Brazil South
  • Brazil Southeast
  • Brazil West-Central
  • Caribbean Dominican Republic
  • Haiti
  • Puerto Rico
  • Trinidad-Tobago
  • Central America Belize
  • Costa Rica
  • Guatemala
  • Honduras
  • Nicaragua
  • Panamá
  • Northern South America French Guiana
  • Guyana
  • Suriname
  • Venezuela
  • Southern South America Argentina Northeast
  • Paraguay
  • Uruguay
  • Western South America Bolivia
  • Colombia
  • Peru

  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.