GrassBase - The Online World Grass Flora


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

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

Hordeum bogdanii

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; 0.2–0.6 mm long. Leaf-blades 9–18 cm long; 2–6.5 mm wide. Leaf-blade surface scabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; linear; bilateral; (2–)3.5–9 cm long; 5–7 mm wide. Rhachis tough, or fragile at the nodes (above); flattened; scabrous on margins; glabrous 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, or sessile and pedicelled; 1 in the cluster, or 3 in the cluster; 1 sessile. Companion sterile spikelets pedicelled; 0 in the cluster, or 2 in the cluster. Pedicels oblong.

STERILE SPIKELETS Companion sterile spikelets absent, or well-developed; male; lanceolate; dorsally compressed; 4–11 mm long; shorter than fertile; persistent, or deciduous with the fertile. Companion sterile spikelet glumes subulate. Companion sterile spikelet lemmas 1; 4–7 mm long; 1-awned; with 2.5–6 mm long awn.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 4–11 mm long; falling entire, or breaking up at maturity; deciduous when tough with accessory branch structures; disarticulating when fragile below each fertile floret.

GLUMES Glumes collateral; similar. Lower glume subulate; 4–11 mm long; 1 length of upper glume. Upper glume subulate; 4–11 mm long.

FLORETS Fertile lemma lanceolate; 4.3–7.5 mm long; coriaceous; without keel; 5 -veined. Lemma surface glabrous, or puberulous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn straight; 4–13 mm long overall; limb scabrous. Rhachilla extension 3.5–8 mm long.

FLOWER Anthers 3; 1.4–2.4 mm long. 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 Middle Asia, western Asia, China, and Mongolia. Asia-tropical: India.

NOTES Triticeae. Fl Pak 1993.

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