Coelachne R.Br.
  • Prodr. Fl. Nov. Holl.: 187 (1810) 


Notes: Distribution: Trop. Africa, Madagascar, Trop. & Subtrop. Asia to N. Australia

General Description

HABIT Annual (7), or perennial (4). Culms erect (1/9), or geniculately ascending (2/9), or decumbent (3/9), or prostrate (5/9); slender (1/3), or weak (2/3); 2.5-13.32-50 cm long; rooting from lower nodes (7/7). Ligule a fringe of hairs (9), or absent (2). Leaf-blades linear (4), or lanceolate (9), or oblong (1); firm (9), or flaccid (1). Leaf-blade midrib indistinct (1/1). INFLORESCENCE Inflorescence a panicle; terminal (9), or terminal and axillary (1). Panicle open (8), or contracted (2). Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform (1/6), or linear (1/6), or oblong (4/6). FERTILE SPIKELETS Spikelets comprising 1 fertile florets (1), or 2 fertile florets; without rhachilla extension. Spikelets elliptic (2), or oblong (6), or ovate (4); laterally compressed; 1-2.041-3.6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous (1/1). GLUMES Glumes persistent; shorter than spikelet; thinner than fertile lemma (9), or similar to fertile lemma in texture (1); parallel to lemmas (8), or gaping (2). Lower glume elliptic (3), or ovate (6), or orbicular (3); 0.5-0.781-1 length of upper glume; membranous; without keels; 0 -veined (1/8), or 1 -veined (5/8), or 2 -veined (4/8), or 3 -veined (6/8), or 4-5 -veined (1/8). Lower glume lateral veins absent (2), or distinct (8). Lower glume surface glabrous (9), or pubescent (1). Lower glume apex truncate (1/9), or obtuse (7/9), or acute (1/9). Upper glume elliptic (4), or ovate (4), or orbicular (3); 0.4-0.6-0.7 length of adjacent fertile lemma; membranous; with undifferentiated margins (9), or hyaline margins (1); without keels; 1-2 -veined (1/8), or 3 -veined (2/8), or 4 -veined (1/8), or 5 -veined (6/8), or 6-7 -veined (1/8). Upper glume surface glabrous (9), or pubescent (1). Upper glume apex obtuse (8/9), or acute (1/9). FLORETS Fertile florets bisexual (5), or female (5). Fertile lemma elliptic (7), or ovate (5); hyaline (1), or membranous (7), or chartaceous (2); without keel; 0 -veined (5/7), or 1-2 -veined (2/7), or 3 -veined (4/7), or 4-5 -veined (2/7). Lemma lateral veins obscure (2/2). Lemma surface glabrous (4), or pubescent (6). Lemma margins eciliate (8), or ciliolate (1), or ciliate (1). Lemma apex obtuse (3/9), or acute (6/9). Palea 0.75-0.9722-1 length of lemma; hyaline (1), or membranous (9); 2 -veined (6/6). Palea keels smooth (9), or scaberulous (1); eciliate (9), or ciliolate (1). Palea surface glabrous (6), or puberulous (1), or pubescent (3). FLOWER Anthers 2 (9/9), or 3 (1/9). FRUIT Caryopsis with adherent pericarp; fusiform (1), or ellipsoid (3), or oblong (1), or ovoid (6). Embryo 0.3-0.318-0.33 length of caryopsis. Hilum punctiform (8/8). DISTRIBUTION Africa (4), or Temperate Asia (2), or Tropical Asia (6), or Australasia (1).

Distribution Map

 
  • Native distribution
Found in
  • Africa East Tropical Africa Kenya
  • Tanzania
  • Uganda
  • Northeast Tropical Africa Ethiopia
  • South Tropical Africa Malawi
  • Mozambique
  • Zambia
  • Zimbabwe
  • West-Central Tropical Africa Burundi
  • Cameroon
  • Congo
  • Gabon
  • Rwanda
  • Zaire
  • Western Indian Ocean Madagascar
  • Asia-Temperate China China South-Central
  • China Southeast
  • Eastern Asia Japan
  • Asia-Tropical Indian Subcontinent East Himalaya
  • India
  • Nepal
  • Sri Lanka
  • Indo-China Cambodia
  • Laos
  • Myanmar
  • Thailand
  • Vietnam
  • Malesia Jawa
  • Malaya
  • Maluku
  • Philippines
  • Sulawesi
  • Sumatera
  • Papuasia New Guinea
  • Australasia Australia Northern Territory
  • Queensland

  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.