1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus verticillaris Griff.

        This species is accepted, and its native range is Peninsula Thailand to Sumatera.

    [PW]
    Vernacular
    rotan sabong
    Distribution
    Kelantan, Trengganu, Pahang, Perak, Selangor, Negri Sembilan, Malacca, Johore. Thailand. Sumatra.
    General Description
    Very variable, usually solitary rotan with stems rarely exceeding 15 m in length, often flowering when much less. Stems without sheaths to 2 cm in diameter, with sheaths to 3 cm or more. Internodes rather short rarely more than 12 cm long. Sheaths bright green densely armed with interlocking pairs of collars and single collars of short black horse-hair-like spines, rarely more than 2 cm long intermingled with large laminar yellowish green to blackish spines to 6 cm long; interlocking collars forming galleries inhabited by ants. Dark brown indumentum abundant on young sheaths. Knee present but mostly obscured by spines. Leaf to 3 m long with petiole to 40 cm and cirrus to 1 m. Petiole armed with large reflexed spines in whorls and minute bristles in small groups. Leaflets very regular, close ± 45 to 60 on each side of the rachis, longest leaflets to about 40 cm long by 2.3 cm wide, sparsely bristly on mid-vein and some lateral veins below. Inflorescences male and female superficially similar but male more highly branched. Peduncle short to long, very sparsely armed bracts thin finely black bristly. Male flowers tightly packed, distichous; female flowers much larger but also markedly distichous. Fruit rounded sessile or shortly stalked, at maturity to 15 mm in diameter very shortly beaked, covered in 15 vertical rows of pale straw to red-brown scales, with dull brown marginal lines. Seed rounded, somewhat pitted. Endosperm ruminate. Seedling leaf pinnate with few close-set leaflets.

    Images

    Distribution

    Native to:

    Malaya, Sumatera, Thailand

    Calamus verticillaris Griff. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 29, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207624 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207626 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207625 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207627 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207659 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207660 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207661 isotype
    Apr 26, 1989 Furtado, C.X. [33126], Peninsular Malaysia Daemonorops verticillaris K000207662 isotype
    Henderson, M.R. [29549], Peninsular Malaysia Daemonorops verticillaris K000207628 isotype
    Henderson, M.R. [29549], Peninsular Malaysia Daemonorops verticillaris K000207629 isotype
    Henderson, M.R. [29549], Peninsular Malaysia Daemonorops verticillaris K000207630 isotype
    Corner, E.J.H. [30465], Peninsular Malaysia Daemonorops verticillaris K000207633 isotype
    Corner, E.J.H. [30465], Peninsular Malaysia Daemonorops verticillaris K000207632 isotype
    Corner, E.J.H. [30465], Peninsular Malaysia Daemonorops verticillaris K000207631 isotype
    Cultivated [1991-1094] Daemonorops verticillaris K000520966

    First published in Calcutta J. Nat. Hist. 5: 63 (1845)

    Not accepted by

    • Govaerts, R. & Dransfield, J. (2005). World Checklist of Palms: 1-223. The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Daemonorops verticillaris.]
    • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Daemonorops verticillaris.]

    Sources

    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 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