Pleioblastus baviensis

HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms 400–500 cm long; woody. Culm-internodes terete; hollow; distally glabrous. Lateral branches dendroid. Leaf-sheaths outer margin hairy. Leaf-sheath oral hairs ciliate. Ligule a ciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 6–10 cm long; 7–10 mm wide. Leaf-blade venation with distinct cross veins. Leaf-blade surface puberulous; hairy abaxially. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open. Panicle branches pubescent.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 5–6 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 30 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 5 mm long; pubescent. Floret callus disarticulating obliquely.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate, or ovate; 6 mm long; chartaceous; without keels. Lower glume margins ciliate. Lower glume apex acute. Upper glume lanceolate, or ovate; 8.5–9 mm long; chartaceous; without keels; 9 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; 9–9.5 mm long; chartaceous; without keel; 9 -veined. Palea 10 mm long. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3; ciliate. Anthers 3. Stigmas 3.

FRUIT Caryopsis with adherent pericarp; apex unappendaged.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Arundinarieae. Lecomte 1996.

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