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.

Glyceria lazistanica

HABIT Perennial. Culms geniculately ascending; 70–130 cm long. Ligule an eciliate membrane; 3–5 mm long. Leaf-blades 4–9 mm wide; stiff. Leaf-blade surface puberulous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 20–35 cm long. Panicle branches smooth.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 5–7 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 4–6 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 1.3–1.7 mm long; 0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 1.7–2.2 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma ovate; 2.3–2.7 mm long; membranous; without keel. Lemma surface smooth. Lemma apex acute. Palea bowed outwards; 1 length of lemma; 2 -veined. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 0.6–0.7 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: western Asia.

NOTES Meliceae. Tzvelev 2008.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.