GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Indocalamus hispidus

HABIT Perennial; caespitose. Rhizomes elongated; leptomorph. Culms erect; 100–200(–350) cm long; 3–12 mm diam.; woody. Culm-internodes terete; hollow; 10–35 cm long; distally hispid; with tubercle-based hairs. Lateral branches suffrutescent. Branch complement one. Culm-sheaths coriaceous; hispid; with red hairs; without auricles; glabrous on shoulders. Culm-sheath ligule 1–3 mm high. Culm-sheath blade lanceolate; reflexed; 0.6–3 cm long. Leaves cauline. Leaf-sheath oral hairs lacking. Leaf-sheath auricles absent. Ligule an eciliate membrane; 1.5–3 mm long. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.5–1 cm long. Leaf-blades oblong; 11–28 cm long; 40–65 mm wide. Leaf-blade venation with 16–30 secondary veins; with distinct cross veins. Leaf-blade surface pubescent; hairy abaxially. Leaf-blade apex caudate.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; oblong; 9–10 cm long. Primary panicle branches appressed, or ascending. Panicle axis pubescent.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 4–5 fertile florets; with diminished florets at the apex. Spikelets linear; subterete; 13–17 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.5–5 mm long; chartaceous; without keels. Lower glume apex acuminate. Upper glume lanceolate; 7–10 mm long; chartaceous; without keels; 3 -veined. Upper glume apex setaceously attenuate.

FLORETS Fertile lemma lanceolate; 10 mm long; chartaceous; without keel; 5 -veined. Lemma lateral veins with cross-veins. Lemma apex setaceously attenuate. Palea 0.25 length of lemma. 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. Zhao & Yang 2002.

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