Poaceae
Chusquea

Chusquea angustifolia (Soderstr. & C.E.Calderón) L.G.Clark

First published in Ann. Missouri Bot. Gard. 74: 428 (1987)
This species is accepted
The native range of this species is E. Colombia to W. Venezuela. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Nativa en Colombia; Alt. 2700 - 3500 m.; Andes.
Morphology General Habit
Subarbusto, arbusto
Conservation
No Evaluada
[CPLC]

Distribution
Biogeografic region: Andean. Elevation range: 2700–3500 m a.s.l. Native to Colombia. Colombian departments: Boyacá, Meta, Norte de Santander.
Habit
Shrub, Subshrub.
[UPFC]

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 30-100 cm long; 2-5 mm diam.; woody; without nodal roots. Culm-internodes terete; solid; smooth. Lateral branches dendroid; intravaginal. Branch complement several; in a clump; with 1 branch dominant; thinner than stem. Culm-sheaths persistent; pubescent. Culm-sheath ligule 0.8-1 mm high. Culm-sheath blade triangular; as wide as sheath at base; 3 cm long; pubescent; acuminate. Leaves 10-13 per branch. Leaf-sheaths pilose. Ligule a ciliolate membrane; 0.8-1 mm long; obtuse. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.05-0.1 cm long. Leaf-blades deciduous at the ligule; lanceolate; revolute; 6-8 cm long; 2-5 mm wide; coriaceous; stiff. Leaf-blade venation without cross veins. Leaf-blade surface hispid; hairy on both sides. Leaf-blade apex abruptly acute; filiform.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; embraced at base by subtending leaf. Panicle contracted; linear; secund; 4-10 cm long; 0.5-1.3 cm wide. Panicle branches pubescent. Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1-4 mm long; pubescent.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5-7.5 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 lanceolate; laterally compressed; 3.5-7.5 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; 0.6-1.7 mm long; 0.25-0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface puberulous. Lower glume apex obtuse. Upper glume ovate; 2-2.5 mm long; 0.33 length of adjacent fertile lemma; without keels; 3 -veined. Upper glume surface puberulous. Upper glume apex obtuse, or acute.
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 obovate; 3.2-5 mm long; 0.66-0.75 length of fertile lemma; chartaceous; 5 -veined; puberulous; acuminate. Lemma of upper sterile floret lanceolate; 5.5-6.6 mm long; 1.1 length of lower sterile floret; chartaceous; pubescent; acuminate. Fertile lemma oblong; 6-7 mm long; coriaceous; without keel; 7 -veined. Lemma surface puberulous; hairy above. Lemma apex apiculate. Palea 1 length of lemma; 2 -veined. Palea surface puberulous; hairy on back; hairy above.
Morphology Reproductive morphology Flowers
Lodicules 3; 1.4 mm long; membranous; veined; ciliate. Anthers 3; 2.7 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; apex unappendaged.
Distribution
North America: Mexico. South America: northern South America and western South America.
Reference
Bambuseae. Sod & Cald 1995.
[GB]

Sources

  • Catálogo de Plantas y Líquenes de Colombia

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

  • 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

  • Useful Plants and Fungi of Colombia

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