1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Bactris Jacq. ex Scop.
      1. Bactris riparia Mart.

        This species is accepted, and its native range is W. South America to N. Brazil.

    [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
    Nativa en Colombia; Alt. 80 - 300 m.; Amazonia.
    Habit
    Arbusto, árbol
    Conservation
    Preocupación Menor
    [PW]
    Distribution
    Colombia (Amazonas), Ecuador (Sucumbíos), Peru (Loreto, Ucayali), Brazil (Acre, Amazonas), and Bolívia (Beni, La Paz, Pando, Santa Cruz); black-water regions (less commonly on white water rivers) at the margins of streams, rivers, and lakes, often where the stems are partially submerged for at least part of the year, at 120-300 m elevation. W Amazon region in Colombia, Ecuador, Peru, Bolivia, and Brazil. Riparian, forming large colonies in periodically inundated forest, often growing in several meters deep water. Distribution in Ecuador. Common in E Ecuador.
    Vernacular
    Bolívia: chontilla, marajaú, marayau. Brazil: marajá, marajá pupunha. Colombia: chontadurillo, ponilla. Ecuador; chonta durillo, pa'ine (Siona). Peru: ñeja , ñejilla de canto de cocha.
    General Description
    Riverside and lake shore palm. Stems clustered, to 6 m tall and 4-8 cm in diameter. Leaf blade 100-150 cm long; pinnae 40-50 on each side, inserted in groups and spreading in different planes, the central ones 40-60 cm long and 1.5-2.5 cm wide. Inflorescence 25-45 cm long; branches 25-30, 10-15 cm long. Female flowers scattered along the branches. Fruits green, strongly flattened at top, rostrate, ca. 1 x 1.5 cm; fruiting calyx with a very small, undulate calyx, and a much longer 3-lobed corolla; staminodial ring absent. Stems cespitose, usually forming large clumps, 3-10(-15) m tall, 4.5-10 cm diam., spiny on internodes. Leaves 4-18; leaf spines clustered, black or brownish, tomentose, somewhat flattened, to 7 cm long, dense on sheath and lateral surfaces of petiole, fewer on rachis; sheath 30-60 cm long, sheath, petiole, and rachis whitish brown-tomentose; ocrea to 5 cm long; petiole 10-70 cm long; rachis 0.8-1.6 m long; pinnae 33-62 per side, irregularly arranged in indistinct clusters of 2-7, spreading in different planes, linear, briefly and asymmetrically bifid apically, with small, marginal spinules and occasionally with spines on veins abaxially, usually with soft brown hairs to 2 mm long abaxially, especially on veins; middle pinnae 40-69 x 1.5-2.5 cm. Inflorescences interfoliar; peduncle 10-20 cm long, recurved, spiny; prophyll 8-15 cm long; peduncular bract 30-47 cm long, whitish tomentose and densly to moderately covered with black spines; rachis 7-8 cm long; rachillae 24-50, to 15 cm long, at anthesis densely covered with brown, moniliform trichomes; triads irregularly arranged among paired or solitary staminate flowers; staminate flowers 4-6 mm long, deciduous; sepal lobes 1-1.5 mm long; petals 3.5-5 mm long; stamens 6; pistillode absent; pistillate flowers 4.5-6 mm long; calyx cupular, 1-1.5 mm long; corolla tubular, 4-5 mm long; staminodes absent; fruits 1.5-2 cm diam., depressed globose, orange-red or green; mesocarp starchy; endocarp turbinate, the sterile pores displaced longitudinally; endocarp fibers numerous, free or adherent 139 to the endocarp; fruiting perianth with small, undulate calyx and much longer 3-lobed corolla, without staminodial ring.

    Images

    Distribution

    Native to:

    Bolivia, Brazil North, Colombia, Ecuador, Peru

    Bactris riparia Mart. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Trail, J.W.H. [s.n.] K000525826

    First published in Hist. Nat. Palm. 2: 97 (1826)

    Accepted by

    • Lorenzi, H., Noblick, L.R., Kahn, F. & Ferreira, E. (2010). Brazilian Flora Arecaceae (Palms): 1-268. Instituto Plantarum de Estudos da Flora LTDA, São Paulo, Brazil.
    • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

    Literature

    Palmweb - Palms of the World Online
    • Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000
    • Borchsenius F., Borgtoft-Pedersen H. and Baslev H. 1998. Manual to the Palms of Ecuador. AAU Reports 37. Department of Systematic Botany, University of Aarhus, Denmark in collaboration with Pontificia Universidad Catalica del Ecuador

    Sources

    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.

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. 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