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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 geniculately ascending; 5–12 cm long. Ligule an eciliate membrane.
INFLORESCENCE Synflorescence compound; fasciculate. Inflorescence composed of racemes; terminal and axillary; subtended by a spatheole; enclosed. Spatheole oblong; hyaline.
Racemes single; unilateral; bearing few fertile spikelets; bearing 1–3 fertile spikelets on each. Rhachis angular.
Spikelets solitary. Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 5–6 mm long; falling entire. Spikelet callus pubescent.
GLUMES Glumes one the lower absent or obscure; reaching apex of florets; firmer than fertile lemma. Upper glume oblong; 1 length of adjacent fertile lemma; chartaceous; without keels; 7–9 -veined. Upper glume lateral veins ribbed. Upper glume apex lobed; 2 -fid; awned; 3–7 -awned.
FLORETS Fertile lemma lanceolate; membranous; keeled; wingless; 3 -veined. Lemma midvein scaberulous. Lemma lateral veins ribbed. Lemma surface unwrinkled; without grooves. Lemma apex obtuse; awned; 1 -awned. Principal lemma awn subapical. Palea tightly convolute around flower; 1 length of lemma; 2 -veined. Palea keels approximate.
DISTRIBUTION North America.
Please cite this publication as detailed in How to Cite Version: 16th November 2012.