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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.
HABIT Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; reed-like; 100–300 cm long; woody. Culm-internodes terete; solid. Lateral branches lacking. Leaf-sheaths glabrous on surface, or pubescent. Ligule a ciliate membrane; 10 mm long. Leaf-blades lanceolate; 30–80 cm long; 40–60 mm wide; coriaceous.
INFLORESCENCE Inflorescence a panicle.
Panicle contracted; lanceolate; 30–50 cm long; 2–4 cm wide. Primary panicle branches 2–5 cm long. Panicle branches channelled.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 3–4 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 1 mm long; 0.66 length of upper glume; coriaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 7–12 mm long. Upper glume ovate; 1.5 mm long; 0.5 length of adjacent fertile lemma; coriaceous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 4 mm long.
FLORETS Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret elliptic; 2.5–3 mm long; coriaceous; acute. Lemma of upper sterile floret 2.5–3 mm long. Fertile lemma elliptic; 3–4 mm long; coriaceous; without keel. Lemma apex acute. Palea 1 length of lemma; coriaceous; without keels.
FLOWER Lodicules 3. Anthers 3. Stigmas 2.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION South America: western South America.
NOTES Bambuseae. Gr Peru 1997.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.