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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.
Deschampsia klossii
HABIT Perennial; caespitose; clumped densely. Culms erect; 50–120 cm long. Lateral branches lacking. Ligule an eciliate membrane; 3–10 mm long. Leaf-blades flat, or involute; 10–30 cm long; 1–4 mm wide; stiff. Leaf-blade surface ribbed; scabrous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex attenuate; pungent.
INFLORESCENCE Inflorescence a panicle.
Panicle open; ovate; 15–20 cm long.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
FERTILE SPIKELETS Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 4–5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pilose; hairy below; with 1 mm long hairs. Floret callus pilose. Floret callus hairs 1.5–2.5 mm long.
GLUMES Glumes persistent; similar; exceeding apex of florets; similar to fertile lemma in texture; shiny; gaping. Lower glume lanceolate; 4–5 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume elliptic; 4–5 mm long; membranous; 1-keeled; 3 -veined. Upper glume apex acuminate.
FLORETS Fertile lemma lanceolate; 3–4 mm long; membranous; without keel; 5 -veined. Lemma surface asperulous. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.25–0.5 way up back of lemma; straight; 2.5–5 mm long overall. Rhachilla extension 1.5–2 mm long; pubescent.
FLOWER Lodicules 2; membranous. Anthers 3; 1.4 mm long. Ovary glabrous.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION Asia-tropical: Malesia and Papuasia. Pacific: south-central.
NOTES Aveneae. Hooker 1994.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.