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.

Pleioblastus chino

HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 300–400 cm long; 20 mm diam.; woody. Culm-internodes terete; with small lumen; distally glabrous. Lateral branches dendroid. Culm-sheaths glabrous. Leaves cauline. Leaf-sheaths glabrous on surface, or puberulous. Leaf-sheath oral hairs ciliate; pale. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 15–25 cm long; 15–22 mm wide. Leaf-blade surface glabrous, or pubescent; hairy abaxially. Leaf-blade apex attenuate.

INFLORESCENCE Synflorescence compound; fasciculate. Inflorescence comprising only a few spikelets; comprising 1 fertile spikelets; terminal and axillary; subtended by a spatheole; embraced at base by subtending leaf. Spatheole lanceolate; 3–5 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 8–12 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 60–110 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4–6 mm long; pubescent.

GLUMES Glumes one the lower absent or obscure, or one to two the lower present in some spikelets; persistent; similar; shorter than spikelet. Lower glume lanceolate; 3–4 mm long; chartaceous; without keels; 0 -veined. Lower glume lateral veins absent. Upper glume lanceolate, or ovate; 8–10 mm long; chartaceous; 5–7 -veined.

FLORETS Fertile lemma lanceolate; 10–18 mm long; chartaceous; without keel; 11–13 -veined. Lemma lateral veins with cross-veins. Lemma apex acuminate. Palea 11–13 mm long; 8–10 -veined. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3; ovate; 5 mm long; veined; ciliate. Anthers 3; 7 mm long. Stigmas 3.

FRUIT Caryopsis with adherent pericarp; apex unappendaged.

DISTRIBUTION Asia-temperate: Caucasus and eastern Asia. Australasia: New Zealand.

NOTES Arundinarieae. Ind Jap Bam 2001.

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