Oxyrhachis Pilg.
  • Notizbl. Bot. Gart. Berlin-Dahlem 11: 655 (1932) 

Notes: Distribution: Trop. & S. Africa, Madagascar

General Description

HABIT Perennial. Culms erect; 20-60 cm long. Ligule a ciliolate membrane. Leaf-blades filiform. INFLORESCENCE Inflorescence composed of racemes. Racemes single; erect; bilateral. Rhachis fragile at the nodes; subcylindrical and excavated. Spikelet packing abaxial. Rhachis internodes oblong. Rhachis internode tip oblique. Spikelets sunken; solitary. Fertile spikelets sessile. FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 3-6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus square; glabrous; base obtuse; attached obliquely. GLUMES Glumes reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; coriaceous; without keels; 6-7 -veined. Lower glume apex obtuse. Upper glume oblong; chartaceous. FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret oblong; hyaline; 0-2 -veined. Fertile lemma oblong; hyaline; without keel; 2 -veined. Lemma apex truncate. Palea present, or absent or minute; 0-0.2 length of lemma; without keels. DISTRIBUTION Africa.

Distribution Map

  • Native distribution
Found in
  • Africa East Tropical Africa Tanzania
  • South Tropical Africa Mozambique
  • Zambia
  • Southern Africa Cape Provinces
  • KwaZulu-Natal
  • West Tropical Africa Nigeria
  • Sierra Leone
  • West-Central Tropical Africa Cameroon
  • Western Indian Ocean Madagascar


  • 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.