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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Coelachne monantha
HABIT Annual; mat forming. Culms decumbent; 5–20 cm long; 0.5–0.7 mm diam. Culm-nodes pubescent. Ligule absent. Leaf-blades lanceolate; 1–3 cm long; 2–6 mm wide; flaccid.
INFLORESCENCE Inflorescence a panicle; terminal and axillary.
Panicle open; ovate; 1.5–3 cm long; 1–2 cm wide. Primary panicle branches spreading; simple; bearing 1–3 fertile spikelets on each lower branch; bearing spikelets almost to the base.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1–2 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2.2–2.5 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 0.7–0.8 mm long; 0.6–0.7 length of upper glume; membranous; much thinner on margins; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 1–1.2 mm long; 0.4–0.6 length of adjacent fertile lemma; membranous; with hyaline margins; without keels; 3 -veined. Upper glume apex obtuse.
FLORETS Fertile lemma elliptic; 2.2–2.5 mm long; membranous; without keel; 0 -veined. Lemma apex obtuse. Palea 1 length of lemma; hyaline; 2 -veined.
FLOWER Anthers 2; 0.3 mm long.
FRUIT Caryopsis with adherent pericarp; ellipsoid; 1 mm long.
DISTRIBUTION Asia-temperate: eastern Asia.
NOTES Isachneae. Koyama.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.