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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. Culms decumbent; 20–25 cm long. Ligule an eciliate membrane. Leaf-blades lanceolate.
INFLORESCENCE Inflorescence composed of racemes; subtended by a spatheole; enclosed. Spatheole linear; herbaceous.
Racemes single. Rhachis fragile at the nodes; flattened. Rhachis internodes cuneate. Rhachis internode tip cupuliform.
Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster.
STERILE SPIKELETS Companion sterile spikelets represented by single glumes; persistent.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 5–6 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus pubescent; base obtuse; inserted.
GLUMES Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; chartaceous; without keels; 5 -veined. Lower glume lateral veins ribbed. Lower glume surface without pits; villous. Lower glume apex entire, or dentate; 2 -fid; obtuse. Upper glume ovate; chartaceous; 1-keeled; 3 -veined. Upper glume apex dentate; 2 -fid; awned; 1 -awned.
FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret elliptic; membranous; 3 -veined; obtuse. Fertile lemma oblong; hyaline; without keel; wingless; 3 -veined. Lemma surface unwrinkled; without grooves. Lemma margins ciliolate. Lemma apex lobed; 2 -fid; incised 0.3 of lemma length; awned. Principal lemma awn from a sinus; geniculate. Palea 0.8 length of lemma; hyaline; 2 -veined; without keels.
FLOWER Anthers 3.
FRUIT Caryopsis with adherent pericarp; oblong; isodiametric. Embryo 0.3 length of caryopsis. Hilum elliptic.
DISTRIBUTION Tropical Asia.
Please cite this publication as detailed in How to Cite Version: 16th November 2012.