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 delislei

HABIT Perennial; caespitose. Culms erect; 20–30 cm long. Ligule an eciliate membrane; 2–4 mm long; obtuse. Leaf-blades 4–11 cm long; 1–2 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 5–8 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 4–5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; gaping. Lower glume lanceolate; 4–5 mm long; 1 length of upper glume; membranous; 1-keeled. Lower glume apex acuminate. Upper glume lanceolate; 4–5 mm long; membranous; 1-keeled. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate; 2.5 mm long; hyaline; without keel; 5 -veined. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.66 way up back of lemma; curved; 2–3 mm long overall. Palea 0.66 length of lemma; hyaline.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Antarctic: Subantarctic islands.

NOTES Aveneae. WDC 2002.

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