Indocalamus sinicus

HABIT Perennial; caespitose. Rhizomes elongated; leptomorph. Culms woody. Culm-internodes terete; distally glabrous. Lateral branches suffrutescent. Leaves cauline. Leaf-sheaths striately veined; smooth; glabrous on surface. Leaf-sheath oral hairs setose. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate; 15–25 cm long; 18–30 mm wide. Leaf-blade venation indistinct; with 10–14 secondary veins; with obscure cross veins. Leaf-blade surface glabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 15–30 cm long. Primary panicle branches 10–15 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 25–50 mm long.

FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; with diminished florets at the apex. Spikelets linear; subterete; 12–16 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 6 mm long; chartaceous; without keels; 3–7 -veined. Lower glume surface glabrous. Lower glume margins ciliolate. Lower glume apex acute. Upper glume lanceolate; 8 mm long; chartaceous; 1-keeled; 7–9 -veined. Upper glume surface glabrous. Upper glume margins ciliolate. Upper glume apex truncate.

FLORETS Fertile lemma ovate; 10–12 mm long; chartaceous; without keel; 13 -veined. Lemma surface glabrous. Palea 1 length of lemma; chartaceous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 3. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China.

NOTES Arundinarieae. Munro 2002.

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