New! - Search other data sources for Arundinella cochinchinensis

Help - Wrong Description?

Kew Data Sources

Kew's Herbarium Catalogue
ePIC - Electronic Plant Information Centre

External Data Sources

Note - this takes you off of our website
Use your browser's back button to return to this page

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.

Arundinella cochinchinensis

HABIT Perennial. Culms erect; robust; 250 cm long; 4–6 mm diam. Culm-nodes pubescent. Lateral branches lacking. Leaf-sheaths longer than adjacent culm internode; glabrous on surface; outer margin glabrous, or hairy. Ligule an eciliate membrane. Leaf-blades 60 cm long; 20 mm wide. Leaf-blade midrib conspicuous. Leaf-blade surface pilose; hairy on both sides; with tubercle-based hairs. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle; bearing juvenile spikelets at emergence.

Panicle contracted; oblong; interrupted; 60 cm long. Primary panicle branches appressed; bearing spikelets almost to the base.

Spikelets in pairs. Fertile spikelets pedicelled; 2 in the cluster. Pedicels 1–4 mm long; scaberulous; glabrous.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded; obtuse.

GLUMES Glumes persistent; dissimilar; reaching apex of florets; thinner than fertile lemma; recurved at apex. Lower glume lanceolate, or ovate; 0.75 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein scabrous. Lower glume apex acuminate. Upper glume lanceolate; 2.5 length of adjacent fertile lemma; 1 length of spikelet; membranous; 1-keeled; 3–5 -veined. Upper glume apex caudate.

FLORETS Basal sterile florets male; with palea; persisting on inflorescence. Lemma of lower sterile floret similar to upper glume; lanceolate; 1 length of spikelet; membranous; 1-keeled; 3 -veined; obtuse. Fertile lemma lanceolate; 2 mm long; coriaceous; without keel; 3 -veined. Lemma lateral veins obscure. Lemma surface asperulous. Lemma margins involute; interlocking with palea keels. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 4 mm long overall; with twisted column. Palea with auriculate flaps; coriaceous; 2 -veined. Palea surface asperulous.

FLOWER Lodicules 2; cuneate; fleshy. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-temperate: China. Asia-tropical: Indo-China.

NOTES Arundinelleae. Keng 1993.

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