Arecaceae
Chamaedorea

Chamaedorea deneversiana Grayum & Hodel

First published in Principes 35: 133 (1991)
This species is accepted
The native range of this species is Costa Rica to N. Ecuador. It is a shrub and grows primarily in the wet tropical biome.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

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. 50 - 1300 m.; Andes, Pacífico.
Morphology General Habit
Subarbusto, arbusto, palma solitaria
Conservation
Preocupación Menor
[CPLC]

Distribution
Biogeografic region: Andean, Pacific. Elevation range: 50–1300 m a.s.l. Native to Colombia. Colombian departments: Chocó, Nariño.
Habit
Shrub, Subshrub, Solitary palm.
Conservation
National Red List of Colombia (2021): LC.
[UPFC]

Biology
Wet forest on the Atlantic slope; to 850 m elevation.
Distribution
PANAMA. San Blas. Vergaguas. ECUADOR. Carchi. Cotopaxi. Pichincha. COSTA RICA? Central America and N Ecuador (until now not recorded in between) in premontane wet and pluvial forest, at 500-1600m elevation.
General Description
Understorey palm. Stem to 2 m tall, 1.5-2.5 cm in diameter, often with adventitious roots on the proximal nodes. Leaves erect, bluish metallic green; blade simple 60-80 cm long, 25-30 cm wide. Inflorescences one per node, infrafoliar, often borne close to the base of the stem, 35-40 cm long; branches 5-10, to 10 cm long, those of female inflorescences becoming red in fruit. Fruits elliptic, 10-15 mm long, black. Habit: solitary, decumbent to erect, 1.5-3 m tall. Stem: 1.3-1.6 cm diam., smooth, green, ringed, internodes 5-12 cm long, rooting along its length Leaves: 4, spreading, bifid, rarely pinnate; sheath 19-26 cm long, obliquely open apically, green; petiole 15-45 cm long, ± flat and green above, rounded, rough, and gray-green below; rachis 35-60 cm long, angled and gray-green above, rounded, rough, and gray-green below, yellowish below when dry; blade 50-80 x 12-25 cm, oblong, incised apically 1/5-1/4 its length, bright glossy green, margins coarsely toothed toward apex, rarely with few small basal pinnae, 20-24 primary nerves on each side of rachis, these sharply angled above, slender, sigmoid, prominent below, ± erose-margined. Inflorescences: infrafoliar, borne well below the leaves. Staminate with peduncle 40 cm long, erect; bracts 6; rachis 5 cm long, slightly flexuous; rachillae 10, these 25-33 cm long, drooping. Pistillate with peduncle 18-60 cm long, erect; bracts 5-6; rachis 2-3 cm long, slightly flexuous, orange in fruit; rachillae 3-6, these 10-30 cm long, drooping and yellow to orange in fruit. Flowers: Staminate 1.1-1.3 x 1.8-1.9 mm; calyx 0.3-0.4 mm high, lobed, sepals connate in basal 1/2; petals valvate in bud, apparently free at anthesis, nerveless or obscurely nerved; stamens with anthers 0.6 mm long, ± reniform; pistillode 0.4 mm high, stout, anvil-shaped. Pistillate 2.2-2.5 mm long, suburceolate; calyx 0.5-0.6 x 2.5-2.8 mm, lobed, nerved, sepals connate and/or imbricate basally; petals obscurely nerved externally, prominently 15-nerved within, constricted toward base where connate in a tube 0.2-0.3 mm high; staminodes lacking; pistil 1.5-1.9 mm long, styles short, stigma lobes separated. Fruits: 6.8-7.5 x 5.6-5.8 mm, broadly ellipsoid, green to yellow (presumably immature).
[PW]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Catálogo de Plantas y Líquenes de Colombia

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

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 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 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Palmweb - Palms of the World Online

    • Palmweb 2011. Palmweb: Palms of the World Online. Published on the internet http://www.palmweb.org. Accessed on 21/04/2013
    • Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License http://creativecommons.org/licenses/by-nc-sa/3.0

  • Useful Plants and Fungi of Colombia

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