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.

Koordersiochloa sanjappae

HABIT Perennial. Stolons present. Culms decumbent; 30–65 cm long. Leaf-sheaths tubular for much of their length; 4.5–6 cm long; striately veined. Leaf-sheath auricles erect. Ligule an eciliate membrane; 3–5 mm long; lacerate. Leaf-blades linear, or lanceolate; 8–15 cm long; 6 mm wide. Leaf-blade midrib conspicuous. Leaf-blade surface pubescent; sparsely hairy; hairy on both sides. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; nodding; 11 cm long; 2 cm wide. Primary panicle branches simple; bearing 4–8 fertile spikelets on each lower branch.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 9–18 mm long.

FERTILE SPIKELETS Spikelets comprising 3–6 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 15–20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2 mm long; eventually visible between lemmas; glabrous. Floret callus elongated; 2 mm long; pubescent; pungent; disarticulating obliquely.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 9.5 mm long; 0.75 length of upper glume; membranous; much thinner on margins; without keels; 3 -veined. Lower glume primary vein scabrous. Lower glume apex acuminate. Upper glume lanceolate; 13.5 mm long; 1.2 length of adjacent fertile lemma; membranous; without keels; 5 -veined. Upper glume primary vein scabrous. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate, or oblong; 10.5 mm long; 0.8–1.2 mm wide; chartaceous; without keel; 7–9 -veined. Lemma lateral veins prominent. Lemma apex dentate; 2 -fid; with lobes 3–4 mm long; awned; 1 -awned. Principal lemma awn dorsal; arising 0.7–0.8 way up back of lemma; coiled; twisted together; 29–35 mm long overall. Palea lanceolate, or oblong; 7.8 mm long. Palea surface pubescent; hairy on margins. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; free; 0.3 mm long; fleshy; truncate. Anthers 3; 1–2 mm long; yellow. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; linear, or oblong; sulcate on hilar side; 3.4 mm long.

DISTRIBUTION Asia-tropical: India.

NOTES Meliceae. Kabeer & Nair 2009.

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