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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.
Muhlenbergia caxamarcensis
HABIT Perennial; caespitose; clumped loosely. Culms erect; 8–12 cm long. Leaf-sheaths longer than adjacent culm internode. Ligule an eciliate membrane; 2–2.5 mm long; lacerate. Leaf-blades flat, or conduplicate; 10–15 cm long; 0.6–1 mm wide.
INFLORESCENCE Inflorescence a panicle.
Panicle open; linear; 3–4 cm long.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5–2.8 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 1–1.5 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 1–1.5 mm long; 0.5 length of adjacent fertile lemma; membranous; without keels. Upper glume apex acute.
FLORETS Fertile lemma lanceolate; 2.5 mm long; membranous; without keel; 3 -veined. Lemma apex attenuate; awned; 1 -awned. Principal lemma awn 1.5 mm long overall. Palea 2.5 mm long; 2 -veined.
FLOWER Lodicules 2; cuneate; fleshy.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION South America: western South America.
NOTES Eragrostideae. Gr Peru 1997.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.