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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.
Agrostis gelida
HABIT Perennial; caespitose. Culms 35–60 cm long. Ligule an eciliate membrane; 4–5 mm long. Leaf-blades 2–4 mm wide. Leaf-blade surface scaberulous.
INFLORESCENCE Inflorescence a panicle.
Panicle open; elliptic; 13–17 cm long. Primary panicle branches ascending; whorled at most nodes.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels scabrous.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3 mm long; 2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.
FLORETS Fertile lemma elliptic; 1.5–1.7 mm long; hyaline; without keel; 5 -veined. Lemma surface pubescent; hairy at base. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.4–0.5 way up back of lemma; geniculate; 2 mm long overall; with twisted column. Palea 0.4–0.5 length of lemma; hyaline.
FLOWER Lodicules 2; membranous. Anthers 3.
FRUIT Caryopsis with adherent pericarp. Hilum linear.
DISTRIBUTION South America: western South America.
NOTES Aveneae. Gr Peru 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.