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.

Schizostachyum pleianthemum

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; pendulous at the tip; 30 mm diam.; woody. Culm-internodes terete; with small lumen; 20–90 cm long; distally pruinose. Culm-nodes flush with internodes. Lateral branches dendroid. Culm-sheaths 17–20 cm long; pubescent; with white hairs; hairy on margins; convex at apex, or truncate at apex; auriculate; with 5 mm high auricles; ciliate on shoulders. Culm-sheath ligule 1–2 mm high; dentate. Culm-sheath blade lanceolate; erect, or reflexed; 25 cm long; 24–30 mm wide; glabrous on surface; acuminate. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath; petiole 1.5 cm long. Leaf-blades lanceolate; 25–40 cm long; 35–60 mm wide. Leaf-blade surface glabrous. Leaf-blade apex attenuate.

INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters; 27 cm long overall.

Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; subterete; 60 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 10 mm long.

GLUMES Glumes several; persistent; shorter than spikelet.

FLORETS Fertile lemma lanceolate; 14–19 mm long; chartaceous; without keel; 9 -veined. Lemma margins convolute; covering most of palea. Lemma apex acute. Palea tightly convolute around flower; 13–16 mm long; chartaceous; 8 -veined; 2-keeled. Palea apex dentate; 2 -fid. Apical sterile florets 1 in number; rudimentary.

FLOWER Lodicules 3; 5–7 mm long; glabrous. Anthers 6; 4–5 mm long. Stigmas 3. Ovary with a steeple-like appendage.

FRUIT Caryopsis with free brittle pericarp.

DISTRIBUTION Asia-tropical: Malesia.

NOTES Bambuseae. Dransfield 1996.

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