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.

Ochlandra stridula

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 400–500 cm long; 10 mm diam.; woody. Culm-internodes terete; hollow. Lateral branches dendroid. Bud complement 1. Branch complement several; in a horizontal line; with 1 branch dominant; thinner than stem. Culm-sheaths deciduous; auriculate; setose on shoulders. Culm-sheath ligule 1 mm high. Culm-sheath blade lanceolate (with lateral projections at 2/3 its length); reflexed; 7.5 cm long; attenuate. Leaves cauline; 8–14 per branch. Leaf-sheath oral hairs woolly. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 1.3–2.2 mm long; scarious. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 23–34 cm long; 25–50 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in stellate clusters; 4–6 cm long (diam); dense; with spathaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; subterete; 25–30 mm long; 2–5 mm wide; falling entire.

GLUMES Glumes several; 3 empty glumes; similar; shorter than spikelet. Lower glume oblong; 10–15 mm long; chartaceous; without keels; 21–33 -veined. Lower glume margins ciliate. Lower glume apex acute; mucronate.

FLORETS Fertile lemma oblong; 22–28 mm long; chartaceous; without keel; 18 -veined. Lemma surface with a median groove. Lemma margins convolute; covering most of palea. Lemma apex emarginate; mucronate. Palea oblong; tightly convolute around flower; 1 length of lemma; 12 -veined; without keels. Palea apex emarginate. Rhachilla extension 0.05 length of fertile floret.

FLOWER Lodicules several (7); lanceolate; 10–12 mm long; membranous; veined; glabrous; acute. Anthers 27; dehiscent by a subapical slit. Stigmas 4. Ovary with a steeple-like appendage; glabrous.

FRUIT Caryopsis with fleshy pericarp. Endosperm farinose.

DISTRIBUTION Asia-tropical: India.

NOTES Bambuseae. WDC.

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