New! - Search other data sources for Hordeum brevisubulatum

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.

Hordeum brevisubulatum

HABIT Perennial; caespitose. Culms erect, or geniculately ascending; 15–100 cm long. Culm-nodes pubescent. Leaf-sheath oral hairs lacking. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 0.2–0.7 mm long. Leaf-blades 9–18 cm long; 1–7 mm wide. Leaf-blade surface scabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; linear; bilateral; 2.5–9.5 cm long; 3–4.5 mm wide. Rhachis fragile at the nodes; flattened; ciliate on margins. Spikelet packing broadside to rhachis. Rhachis internodes oblong; 1–1.5 mm long; falling with spikelet above.

Spikelets in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 2 in the cluster. Pedicels oblong; 0.9–2.3 mm long.

STERILE SPIKELETS Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; dorsally compressed; 3–11 mm long; shorter than fertile; deciduous with the fertile. Companion sterile spikelet glumes subulate. Companion sterile spikelet lemmas 1; 3–6.5 mm long; 1-awned; with 1 mm long awn.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 4–10 mm long; falling entire; deciduous with accessory branch structures.

GLUMES Glumes collateral; similar. Lower glume subulate; 4–10 mm long; 1 length of upper glume. Lower glume surface scabrous. Upper glume subulate; 4–10 mm long. Upper glume surface scabrous.

FLORETS Fertile lemma lanceolate; 4.5–9 mm long; coriaceous; without keel; 5 -veined. Lemma surface scabrous; glabrous, or puberulous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 1–7 mm long overall; limb scabrous. Rhachilla extension 1.3–6 mm long.

FLOWER Anthers 3. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp; sulcate on hilar side; hairy at apex. Hilum linear.

DISTRIBUTION Europe: eastern. Asia-temperate: Siberia, Soviet far east, Soviet Middle Asia, Caucasus, western Asia, China, and Mongolia. Asia-tropical: India.

NOTES Triticeae. Bothmer 1993.

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