Chusquea montana Phil.

First published in Linnaea 33: 298 (1864)
This species is accepted
The native range of this species is S. Central & S. Chile to SW. Argentina. It is a bamboo and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial. Culms erect, or leaning; 200-300 cm long; woody; without nodal roots. Culm-internodes terete; solid; smooth. Culm-nodes swollen. Lateral branches dendroid. Branch complement several; in a clump; with 1 branch dominant; thinner than stem. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs pubescent. Ligule an eciliate membrane; 2-4 mm long. Leaf-blade base with a brief petiole-like connection to sheath; petiole glabrous. Leaf-blades deciduous at the ligule; lanceolate; 8-13 cm long; 6-10 mm wide; herbaceous. Leaf-blade venation without cross veins. Leaf-blade surface glabrous. Leaf-blade margins cartilaginous; scabrous.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 14-20 cm long. Primary panicle branches 5-13 cm long. Panicle axis pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels pubescent.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 6-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; 6-7 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.5-0.6 mm long; 0.75 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.6-0.7 mm long; 0.1 length of adjacent fertile lemma; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets similar; barren; without significant palea; attached to and deciduous with the fertile. Lemma of lower sterile floret ovate; 3-3.5 mm long; 0.5 length of fertile lemma; chartaceous; 3 -veined; pubescent; acute. Lemma of upper sterile floret ovate; 3.5-4.5 mm long; 1.2-1.3 length of lower sterile floret; chartaceous; pubescent; acute. Fertile lemma ovate; 6 mm long; coriaceous; without keel; 7 -veined. Lemma surface pubescent; hairy above. Lemma apex acuminate. Palea 1 length of lemma; 4 -veined. Palea surface pubescent.
Morphology Reproductive morphology Flowers
Lodicules 3; membranous; veined; ciliate. Anthers 3; 4 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 5.5-6.5 mm long; apex unappendaged. Hilum linear; 1 length of caryopsis.
Distribution
South America: southern South America.
Reference
Bambuseae. Fl Pat 1995.
[GB]

Sources

  • GrassBase - The Online World Grass Flora

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0