1. Family: Arecaceae Bercht. & J.Presl
    1. Genus: Calamus L.
      1. Calamus pogonacanthus Becc. ex H.J.P.Winkl.

        This species is accepted, and its native range is N. & E. Borneo.

    [PW]
    Distribution
    Widespread throughout Brunei and the rest of Borneo; endemic.
    Vernacular
    Uwai Taut (Dus.), Wi Tut (Ib.)
    General Description
    Clustering moderate very variable rattan climbing to 30 m or more; stem without sheaths to 15 mm diam., with sheaths to 25 mm diam., internodes to 30 cm. Sheaths dull to bright green, covered with deciduous brown scales and scattered spines with concave bases and black hairy margins, the spines varying from 2-30 mm on the same sheath or, more often, rather uniform, 10-25 mm; knee conspicuous; ocrea inconspicuous, to 5 mm with few small spines. Vestigial flagellum present, erect, to 30 cm. Leaf cirrate, to 2 m long, including the short petiole to 10 cm and the cirrus to 80 cm, cirrus bearing scattered rather than neatly grouped spines; leaflets c. 20-25 on each side of the rachis, irregularly arranged, usually subregular near the base and grouped in 3’s or 4’s near the cirrus, rarely ± regular throughout, the longest to 40 × 2 cm, armed with scattered bristles along the main veins on both surfaces. Inflorescences superficially similar, to c. 1.5 m with up to 8 lax partial inflorescences arranged rather regularly; main bracts tubular, armed with scattered spines, scarcely splitting; male rachilla to 30 × 3 mm, female to 150 × 4 mm; bracts and bracteoles dull dirty brown. Mature fruit spherical or somewhat depressed, to 8 × 10 mm, tipped with a beak to 1.5 × 1.5 mm and covered with 24 vertical rows of pale straw-coloured scales; seed c. 8 mm diam.; endosperm deeply ruminate. Seedling leaf bifid. (Fig. 39.).
    [PW]
    Use
    Produces a good quality cane which is used locally when rotan sega (Calamus optimus) is unavailable.

    Images

    Distribution

    Calamus pogonacanthus Becc. ex H.J.P.Winkl. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Apr 14, 2005 Watanabe, N.M. [NMW12], Indonesia K000209384
    Sep 12, 2000 Mogea, J.P. [7389], Indonesia K000114249
    Jun 25, 1999 Jinuan, J. [30], Malaysia K000462140
    Sep 29, 1995 Frohlich, J. [B5], Brunei K000462098
    Sep 29, 1995 Frohlich, J. [B4], Brunei K000462099
    Mar 23, 1995 Dransfield, J. [6809], Brunei K000462168
    Jan 6, 1995 Sands, M.J.S. [5918], Brunei K000462172
    Oct 16, 1994 Van Valkenburg [1070], Indonesia K000462165
    May 26, 1994 Ambri [AA425], Indonesia K000462105
    May 26, 1994 Ambriansyah [595], Indonesia K000462178
    May 26, 1994 Van Valkenburg [1053], Indonesia K000462101
    Dec 22, 1993 Van Valkenburg [1134], Indonesia K000462148
    Dec 22, 1993 Van Valkenburg [1189], Indonesia K000462176
    Dec 15, 1993 Soibeh [341], Malaysia K000462129
    Oct 27, 1993 Ambriansyah [AA312], Indonesia K000462179
    May 10, 1993 Bernstein, J. [JHB32], Brunei K000462117
    Dec 30, 1992 Van Valkenburg [1204], Indonesia K000462102
    May 6, 1992 Geesink [8917], Indonesia K000462173
    Jan 31, 1992 Stockdale, M.C. [MCS100], Indonesia K000462142
    Jan 31, 1992 Stockdale, M.C. [MCS83], Indonesia K000462138
    Jan 31, 1992 Stockdale, M.C. [MCS138], Indonesia K000462136
    Jan 30, 1992 Stockdale, M. [MCS93], Indonesia K000462166
    Jan 1, 1991 Dransfield, J. [6893], Brunei K000462170
    Jun 28, 1990 Wong, K.M. [WKM903], Brunei K000462122
    Jun 28, 1990 Wong, K.M. [WKM265], Brunei K000462130
    Mar 23, 1990 Dransfield, J. [6657], Brunei K000462118
    Feb 22, 1989 Awa [S50143], Malaysia K000462104
    Feb 1, 1989 Ching [S53520], Malaysia K000462135
    Feb 11, 1987 Lee [SAN96884], Malaysia K000462115
    Aug 24, 1982 Dransfield, J. [JD6091], Malaysia K000462111
    Aug 24, 1982 Dransfield, J. [JD6073], Malaysia K000462137
    Mar 2, 1982 Mogea, J.P. [2626], Indonesia K000462123
    Mar 11, 1980 Mogea, J.P. [B1554], Indonesia K000462132
    Mar 11, 1980 Mogea, J.P. [B1606], Indonesia K000462131
    Mar 11, 1980 Mogea, J.P. [B1596], Indonesia K000462139
    Aug 31, 1979 Dransfield, J. [JD5578], Malaysia K000462158
    Aug 29, 1979 Dransfield, J. [JD5560], Malaysia K000462147
    Jun 15, 1979 Chew [RSNB4581], Malaysia K000462127
    May 16, 1979 Chin [2878], Malaysia K000462113
    Apr 28, 1979 Dransfield, J. [JD5504], Malaysia K000462145
    Oct 19, 1978 Brand [SAN25302], Malaysia K000462119
    Aug 1, 1975 Dransfield, J. [JD4677], Malaysia K000462161
    Aug 1, 1975 Dransfield, J. [JD4683], Malaysia K000462171
    Jan 27, 1975 Ashton, P. [S12125], Malaysia K000462146
    Ashton, P. [286], Brunei K000462144
    Dransfield, J. [JD1567], Indonesia K000462114
    Dransfield, J. [JD2800], Indonesia K000462124
    Dransfield, J. [2107], Indonesia K000462125
    Dransfield, J. [JD2833], Indonesia K000462126
    Dransfield, J. [7363], Brunei K000462116
    Othman [S61726], Malaysia K000462159
    Baker, W.J. [520], Brunei K000114461
    Baker, W.J. [522], Brunei K000114466
    Ambri [AA940], Indonesia K000462121
    Hoare, A. [26], Malaysia K000114231
    Christensen [474], Malaysia K000462149
    Christensen [180], Malaysia K000462164
    Christensen [1184], Malaysia K000462151
    Van Valkenburg [1009], Indonesia K000462180
    Van Valkenburg [1126], Indonesia K000112801
    Andersen, J. [191], Malaysia K000114113
    Ching [S56504], Malaysia K000462141
    Soibeh [136], Malaysia K000462100
    Soibeh [343], Malaysia K000462108
    Soibeh [786], Malaysia K000462157
    Soibeh [612], Malaysia K000462134
    Duaneh [114], Malaysia K000462120
    Stockdale, M.C. [MCS207], Indonesia K000462169
    Stockdale, M.C. [MCS204], Indonesia K000462177
    Stockdale, M.C. [MCS18], Brunei K000462167
    Stockdale, M.C. [MCS50], Brunei K000462103
    Sambuling [44], Malaysia K000462107
    Sambuling [70], Malaysia K000462109
    Sambuling [24], Malaysia K000462128
    Sambuling [581], Malaysia K000462156
    Sambuling [162], Malaysia K000462155
    Sambuling [135], Malaysia K000462154
    Sambuling [217], Malaysia K000462153
    Sambuling [205], Malaysia K000462152
    Keynes [9], Indonesia K000462143
    Keynes [13], Indonesia K000462133
    Tadong [506], Malaysia K000462110
    Tadong [584], Malaysia K000462163
    Tadong [225], Malaysia K000462175
    Tungking [1], Malaysia K000462174
    Giking [40], Malaysia K000462106
    Giking [12], Malaysia K000462112
    Bunker, W. [OX6], Malaysia K000462160
    Bunker, W. [OX45], Malaysia K000462162

    First published in Bot. Jahrb. Syst. 48: 91 (1912)

    Accepted by

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

    Literature

    Palmweb - Palms of the World Online
    • J. Dransfield, The Rattans of Brunei Darussalam. 1997

    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.

    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