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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 50–70 cm long. Ligule an eciliate membrane. Leaf-blades filiform, or linear.
INFLORESCENCE Inflorescence a panicle.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with a barren rhachilla extension. Spikelets orbicular; laterally compressed; 1.5–2 mm long; breaking up at maturity; disarticulating below each fertile floret, or above glumes but not between florets. Rhachilla internodes definite.
GLUMES Glumes persistent; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 1 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface scabrous; without pits. Lower glume apex acute. Upper glume ovate; 1.3 length of adjacent fertile lemma; chartaceous; without keels; 1 -veined. Upper glume apex acute.
FLORETS Fertile lemma orbicular; indurate; keeled; wingless; 5 -veined. Lemma surface scabrous, or tuberculate; unwrinkled; without grooves. Lemma margins involute. Lemma apex obtuse. Palea 1 length of lemma; indurate; 2 -veined. Palea surface pilose.
FLOWER Anthers 1.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION South America.
Please cite this publication as detailed in How to Cite Version: 27th January 2014.