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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 geniculately ascending; 30–65–100 cm long. Ligule an eciliate membrane.
INFLORESCENCE Inflorescence a panicle.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 3–6 fertile florets (1); with diminished florets at the apex. Spikelets cuneate; laterally compressed; 15–17.5–20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite. Floret callus evident; pubescent.
GLUMES Glumes persistent; shorter than spikelet. Lower glume linear; 0.66–0.8525–1 length of upper glume; herbaceous; 1-keeled; 3 -veined. Lower glume surface without pits. Lower glume apex acuminate (1), or setaceously attenuate (1); muticous (1), or awned (1). Upper glume linear; 1.2–1.3–1.4 length of adjacent fertile lemma; herbaceous; 1-keeled; 5 -veined. Upper glume apex acuminate (1), or setaceously attenuate (1); muticous (1), or awned (1); 1 -awned (1/1).
FLORETS Fertile lemma elliptic; herbaceous; keeled; wingless; 5 -veined. Lemma midvein scabrous. Lemma surface unwrinkled; without grooves. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn curved. Palea 0.9 length of lemma; 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous; 2-toothed. Anthers 3. Ovary pubescent on apex.
FRUIT Caryopsis with adherent pericarp. Hilum linear; 0.75 length of caryopsis.
DISTRIBUTION South America.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.