Pleioblastus kongosanensis

HABIT Perennial. Rhizomes elongated; leptomorph. Culms erect; 100–200 cm long; 5–8 mm diam.; woody. Culm-internodes terete; hollow; distally pubescent. Culm-nodes pubescent, or bearded. Lateral branches lacking, or sparse. Culm-sheaths puberulous; with reflexed hairs. Leaf-sheaths puberulous; with simple hairs, or reflexed hairs. Leaf-sheath oral hairs setose; erect. Ligule an eciliate membrane, or a ciliolate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate; 15–20 cm long; 18–30 mm wide. Leaf-blade surface puberulous; densely hairy; hairy abaxially, or on both sides. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence comprising only a few spikelets; comprising 1–3 fertile spikelets.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 6–8 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 40–50 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes one the lower absent or obscure; persistent; shorter than spikelet. Upper glume lanceolate; chartaceous; without keels. Upper glume apex acuminate.

FLORETS Fertile lemma elliptic; 13–15 mm long; chartaceous; without keel. Lemma lateral veins with cross-veins. Lemma apex acuminate. Palea 1 length of lemma. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3. Anthers 3. Stigmas 3.

FRUIT Caryopsis with adherent pericarp; apex unappendaged.

DISTRIBUTION Asia-temperate: eastern Asia.

NOTES Arundinarieae. Ind. Jap. Bam. 2002.

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