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.

Glyceria pedicellata

HABIT Perennial. Stolons present. Culms decumbent, or prostrate; 50–100 cm long. Leaf-sheaths tubular for much of their length; with 1 of their length closed; keeled; smooth, or scaberulous; glabrous on surface. Ligule an eciliate membrane; 5–10 mm long; acute. Leaf-blades flat, or conduplicate; 10–35 cm long; 5–12 mm wide. Leaf-blade surface scaberulous; rough abaxially, or on both sides. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate, or oblong; 10–50 cm long. Primary panicle branches ascending, or spreading; 2–3 -nate; 2–9 cm long; bearing 1–9 fertile spikelets on each lower branch. Panicle branches smooth.

Spikelets ascending; solitary. Fertile spikelets pedicelled. Pedicels 1–6 mm long.

FERTILE SPIKELETS Spikelets comprising 9–16 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 15–35 mm long; persistent on plant.

GLUMES Glumes similar; shorter than spikelet. Lower glume elliptic, or oblong; 2–3 mm long; 0.66 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume elliptic, or oblong; 3–4.5 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume apex obtuse.

FLORETS Fertile lemma oblong; 4–6 mm long; membranous; much thinner above; without keel; 7 -veined. Lemma surface scaberulous. Lemma apex obtuse. Palea 1 length of lemma; 2 -veined. Palea keels winged; narrowly winged. Palea apex dentate; 2 -fid. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; united; oblong; fleshy; truncate. Anthers 3; 1–1.8 mm long; indehiscent; yellow.

DISTRIBUTION Europe: northern, central, southwestern, southeastern, and eastern. Australasia: New Zealand.

NOTES Meliceae. CEH.

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