Symplectrodia gracilis Lazarides
  • Nuytsia 5: 276 (1984 publ. 1985) 


General Description

HABIT Perennial; caespitose; clumped densely. Rhizomes absent. Butt sheaths green; glabrous, or pubescent. Culms 75-100 cm long; 3 -noded. Culm-nodes pubescent. Leaf-sheaths pilose. Ligule a fringe of hairs; 0.5-1 mm long. Leaf-blades conduplicate; 7-15 cm long; 1-2 mm wide; coriaceous; stiff. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex pungent. INFLORESCENCE Inflorescence a panicle. Panicle open; lanceolate; dense, or loose; 7-17 cm long; 1-3 cm wide. Primary panicle branches 1 -nate; simple; 3-5.5 cm long; bearing spikelets almost to the base. Panicle branches angular; pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 5-12 mm long. FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 13-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; curved; 1.8-2.5 mm long; pubescent; pungent. GLUMES Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume lanceolate; 10-12 mm long; 0.8 length of upper glume; cartilaginous; without keels; 1-3 -veined. Lower glume primary vein scaberulous. Lower glume apex attenuate, or setaceously attenuate. Upper glume lanceolate; 12.5-15 mm long; 1.2 length of adjacent fertile lemma; cartilaginous; without keels; 3-5 -veined. Upper glume primary vein scaberulous. Upper glume apex attenuate, or setaceously attenuate. FLORETS Fertile lemma lanceolate; 10-12 mm long; cartilaginous; without keel; 3 -veined. Lemma midvein eciliate, or ciliate; hairy below. Lemma margins eciliate, or ciliate. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 5-8 mm long overall. Palea fused below to rhachilla internode; 0.8 length of lemma; cartilaginous; thinner above; 2 -veined. Palea keels scaberulous; adorned above. Palea apex acute. Apical sterile florets 4-5 in number; abscissing from fertile floret; barren; in a clump; lanceolate; 3-6 mm long. Apical sterile lemmas pilose; adorned on margins; lobed; 3 -fid; awned; 3 -awned. Apical sterile lemma awns 8-9 mm long (laterals 5-6mm). FLOWER Lodicules 2; cuneate; 0.8-1 mm long; fleshy. Anthers 3; 3.5 mm long. FRUIT Caryopsis with tardily free pericarp; linear; sulcate on hilar side; 4-4.5 mm long. Embryo 0.25 length of caryopsis. Hilum elliptic. DISTRIBUTION Australasia: Australia. NOTES Eragrostideae. WDC.

Distribution Map

 
  • Native distribution
Found in
  • Australasia Australia Northern Territory

  Bibliography

  • 1 Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 2 Mallett, K. (ed.) (2005). Flora of Australia 44B: 1-486. Australian Government Publishing Service, Canberra.

 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
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