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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. Rhizomes elongated. Culms erect; 20–70 cm long. Leaf-sheaths tubular for much of their length. Ligule an eciliate membrane.
INFLORESCENCE Inflorescence composed of racemes.
Racemes single; paucilateral; bearing 10–20 fertile spikelets on each. Rhachis angular. Spikelet packing distant.
Spikelets pendulous; solitary. Fertile spikelets pedicelled. Pedicels linear.
FERTILE SPIKELETS Spikelets comprising 2 basal sterile florets; 1 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 12–15 mm long; falling entire; deciduous with the pedicel. Rhachilla internodes elongated below proximal fertile floret.
GLUMES Glumes shorter than spikelet; thinner than fertile lemma; gaping. Lower glume lanceolate; 0.8 length of upper glume; herbaceous; 1-keeled; 3 -veined. Lower glume surface without pits. Lower glume apex acuminate. Upper glume lanceolate; 0.5 length of adjacent fertile lemma; herbaceous; 1-keeled; 5 -veined. Upper glume apex setaceously attenuate.
FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; 0.66 length of fertile lemma; coriaceous; 5 -veined; acuminate. Fertile lemma lanceolate; coriaceous; keeled; wingless; 5 -veined. Lemma surface unwrinkled; without grooves. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus. Palea keels approximate; ciliolate.
FLOWER Lodicules 2; membranous. Anthers 3.
FRUIT Caryopsis with adherent pericarp; ellipsoid; apex umbonate. Hilum linear.
DISTRIBUTION Temperate Asia.
Please cite this publication as detailed in How to Cite Version: 16th November 2012.