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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 lechleri
HABIT Perennial; caespitose. Culms geniculately ascending; 25–65 cm long. Ligule an eciliate membrane. Leaf-blades flat, or convolute; 1–3 mm wide. Leaf-blade surface pilose; hairy on both sides.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 1; single; bilateral; 5–12 cm long. Rhachis fragile at the nodes; flattened; pubescent 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; 1 mm long.
STERILE SPIKELETS Companion sterile spikelets well-developed; containing empty lemmas, or male; lanceolate; dorsally compressed; 27–55 mm long; as long as fertile; deciduous with the fertile. Companion sterile spikelet glumes similar in width; subulate; 27–55 mm long; scabrous. Companion sterile spikelet lemmas 1; 7 mm long; 1-awned; with 2–12 mm long awn.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; dorsally compressed; 27–55 mm long; falling entire; deciduous with accessory branch structures.
GLUMES Glumes collateral; similar; exceeding apex of florets; gaping. Lower glume subulate; 27–55 mm long; 1 length of upper glume; coriaceous. Lower glume surface scabrous. Upper glume subulate; 27–55 mm long; coriaceous. Upper glume surface scabrous.
FLORETS Fertile lemma lanceolate; 8–10 mm long; coriaceous; without keel; 5 -veined. Lemma surface asperulous; rough above. Lemma margins scabrous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 20–45 mm long overall. Palea 8 mm long. Rhachilla extension 4.5–6.5 mm long.
FLOWER Lodicules 2; 1–1.5 mm long; ciliate. Anthers 3; 1–1.5 mm long. Ovary pubescent on apex.
FRUIT Caryopsis with adherent pericarp; 5 mm long; hairy at apex. Hilum linear.
DISTRIBUTION South America: southern South America.
NOTES Triticeae. Fl Pat 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
