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GrassBase - The Online World Grass Flora
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
HABIT Perennial. Stolons present. Culms erect; 60–100 cm long; wiry. Lateral branches sparse. Ligule a fringe of hairs. Leaf-blades stiff.
INFLORESCENCE Inflorescence composed of racemes.
Racemes borne along a central axis; erect; unilateral; bearing few fertile spikelets; bearing 3–7 fertile spikelets on each. Rhachis angular. Spikelet packing broadside to rhachis; lax.
Spikelets ascending; solitary. Fertile spikelets pedicelled. Pedicels linear.
FERTILE SPIKELETS Spikelets comprising 8–25 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 12–26 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite; villous. Floret callus bearded.
GLUMES Glumes persistent; shorter than spikelet. Lower glume lanceolate; 0.9–1 length of upper glume; coriaceous; without keels; 3–5 -veined. Lower glume surface without pits. Lower glume apex acute. Upper glume lanceolate; 0.9–1 length of adjacent fertile lemma; coriaceous; without keels; 5–7 -veined. Upper glume apex acute.
FLORETS Fertile lemma lanceolate; coriaceous; without keel, or keeled; wingless; 3 -veined. Lemma surface asperulous; unwrinkled; without grooves. Lemma apex entire, or dentate; 2 -fid; incised 0.05 of lemma length; obtuse, or acute; mucronate. Palea 1 length of lemma; hyaline; 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; fleshy. Anthers 3. Stigmas 2.
FRUIT Caryopsis with adherent pericarp; ellipsoid; dorsally compressed; concavo-convex. Embryo 0.4 length of caryopsis. Hilum punctiform.
DISTRIBUTION Africa, or Temperate Asia, or Tropical Asia.
Please cite this publication as detailed in How to Cite Version: 27th January 2014.