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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 Annual. Culms 20–60 cm long. Ligule an eciliate membrane.
INFLORESCENCE Inflorescence a panicle.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5–4 mm long; falling entire.
GLUMES Glumes reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; coriaceous; without keels; 3–5 -veined. Lower glume surface scabrous; without pits. Lower glume apex acute. Upper glume lanceolate; 1 length of adjacent fertile lemma; coriaceous; without keels; 3–5 -veined. Upper glume surface scabrous. Upper glume apex acute.
FLORETS Fertile lemma lanceolate; cartilaginous; keeled; wingless; 3 -veined. Lemma surface unwrinkled; without grooves. Lemma margins covering most of palea. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; geniculate. Palea 0.7 length of lemma; 2 -veined.
FLOWER Anthers 3.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION North America.
Please cite this publication as detailed in How to Cite Version: 16th November 2012.