Poaceae
Chusquea

Chusquea petiolata (Davidse & L.G.Clark) L.G.Clark

First published in Syst. Bot. 34: 681 (2009)
This species is accepted
The native range of this species is Colombia. It is a bamboo and grows primarily in the wet tropical biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; reed-like; 100-400 cm long; 10-15 mm diam.; firm, or wiry; with prop roots. Culm-internodes terete; solid; distally glabrous. Culm-nodes glabrous. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths glabrous on surface. Leaf-sheath auricles erect. Ligule a ciliate membrane; 40-120 mm long. Leaf-blade base asymmetrical; with a false petiole; petiole 21-46 cm long; petiole glabrous. Leaf-blades erect; deciduous at the ligule; lanceolate; 67-93 cm long; 70-110 mm wide; stiff. Leaf-blade surface glabrous. Leaf-blade apex acute.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 80-160 cm long. Primary panicle branches spreading; 1 -nate; 15-36 cm long. Panicle axis glabrous. Panicle branches with prominent pulvini. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 2 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 8-9.8 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; 8-9.8 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 0.3-0.6 mm long; coriaceous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.9-1.7 mm long; coriaceous; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex emarginate, or 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; 4-6 mm long; chartaceous; much thinner above; purple; 3-5 -veined; scaberulous; rough above; pubescent; hairy at base; bearing hairs 0.5-1 mm long; acute. Lemma of upper sterile floret ovate; 6-7 mm long; scabrous (above); glabrous. Fertile lemma ovate; 7-9 mm long; coriaceous; without keel; 5-7 -veined. Lemma surface glabrous. Lemma apex setaceously attenuate. Palea 6-7 mm long; coriaceous; 4 -veined; without keels. Palea surface glabrous.
Morphology Reproductive morphology Flowers
Lodicules 3; 1.4-1.5 mm long; glabrous. Anthers 3; 5.1-5.2 mm long. Stigmas 2. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 5.2-5.5 mm long. Embryo 0.2 length of caryopsis. Hilum linear.
Distribution
South America: western South America.
Reference
Bambuseae. Clarke 2001.
[GB]

Distribution
Biogeografic region: Andean. Elevation range: 2000–3500 m a.s.l. Endemic to Colombia. Colombian departments: Antioquia, Caldas, Cundinamarca, Putumayo.
Habit
Herb.
[UPFC]

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
Endémica y nativa en Colombia; Alt. 2300 - 2400 m.; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

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
Endémica y nativa en Colombia; Alt. 2000 - 3500 m.; Andes.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

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

  • 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