New! - Search other data sources for Bromus sinensis

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.

Bromus sinensis

HABIT Perennial; culms solitary, or caespitose; clumped loosely. Culms 50–60 cm long. Culm-nodes black; pubescent. Leaf-sheaths longer than adjacent culm internode; pilose. Leaf-sheath auricles absent, or falcate. Ligule an eciliate membrane; 1–3 mm long; brown; glabrous on abaxial surface, or pubescent on abaxial surface; entire, or erose; truncate. Leaf-blades erect; flat, or conduplicate; 12–24 cm long; 3–5 mm wide. Leaf-blade midrib keeled beneath. Leaf-blade surface glabrous, or pilose; hairy adaxially, or on both sides.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; nodding; 12–24 cm long. Primary panicle branches spreading; 2–4 -nate; 5–10 cm long; bearing 1–3 fertile spikelets on each lower branch.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 4–8 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 12–20 mm long; 5–8 mm wide; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1–2 mm long; pubescent.

GLUMES Glumes persistent; shorter than spikelet. Lower glume lanceolate; 8–12 mm long; 0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface pubescent. Lower glume apex acuminate, or setaceously attenuate. Upper glume lanceolate; 11–17 mm long; 1 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume surface pubescent. Upper glume apex acuminate, or setaceously attenuate.

FLORETS Fertile lemma oblong; 10–15 mm long; chartaceous; without keel; 5 -veined. Lemma surface pubescent, or pilose. Lemma apex entire, or dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; reflexed; 8–14 mm long overall. Palea oblong; 8–10 mm long. Palea keels contiguous above a sulcus. Palea surface puberulous; hairy on back. Palea apex dentate; 2 -fid. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 1.8–3 mm long. Ovary with a fleshy appendage above style insertion; pubescent on apex.

FRUIT Caryopsis with adherent pericarp; hairy at apex; apex fleshy. Hilum linear.

DISTRIBUTION Asia-temperate: China.

NOTES Bromeae. Keng 2000.

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