New! - Search other data sources for Elymus kamojii

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.

Elymus kamojii

HABIT Perennial; caespitose. Culms erect; 30–100 cm long; 4–6 -noded. Culm-internodes distally glabrous. Leaves basal and cauline. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule an eciliate membrane; truncate. Leaf-blades 5–40 cm long; 3–13 mm wide. Leaf-blade apex acute.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; ascending; bilateral; (7–)15–20(–25) cm long. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis; lax. Rhachis internodes linear; 6–16 mm long. Rhachis internode tip flat.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising (3–)5–10 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 15–25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 2–2.5 mm long; pubescent. Floret callus glabrous, or sparsely hairy.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate, or oblong, or ovate; 4–6 mm long; 0.75–0.8 length of upper glume; coriaceous; without keels; 3 -veined. Lower glume surface glabrous. Lower glume apex acuminate; muticous, or awned; 1 -awned. Lower glume awn 2–7 mm long. Upper glume lanceolate, or oblong, or ovate; 5–8 mm long; coriaceous; without keels; 3–5 -veined. Upper glume apex acuminate; muticous, or awned; 1 -awned. Upper glume awn 2–7 mm long.

FLORETS Fertile lemma lanceolate; 8–12 mm long; coriaceous; much thinner on margins; 5 -veined. Lemma lateral veins ribbed. Lemma surface smooth, or asperulous; rough above, or on veins; glabrous. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight; ascending; 20–40 mm long overall. Palea lanceolate; 0.9 length of lemma. Palea keels winged; narrowly winged; ciliolate; adorned all along. Palea surface glabrous. Palea apex emarginate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 2.5 mm long; yellow, or purple. Stigmas 2.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China and eastern Asia.

NOTES Triticeae. Baum et al 2013.

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