Arecaceae
Korthalsia

Korthalsia flagellaris Miq.

First published in Fl. Ned. Ind., Eerste Bijv.: 591 (1861)
This species is accepted
The native range of this species is S. Peninsula Thailand to W. Malesia. It is a climber 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]

Distribution
Throughout the peat-swamps of Brunei at low elevations. Elsewhere throughout Borneo, Sumatra and Peninsular Malaysia.
Biology
K. flagellaris is confined to peat swamp forest where it is often the most conspicuous rattan.
General Description
Robust clustering and branching rattan with stems climbing to 40 m or more, confined to peat swamp forest. Stems without sheaths to 2.5 cm diam. or more, with sheaths to 4 cm or more, internodes to 30 cm, longer in juveniles. Sheath ± unarmed, dull reddish-brown, covered in caducous black scales and pale brown hairs; ocrea tightly sheathing, unarmed, covered in scales and indumentum as the sheaths, tending to split opposite the petiole. Mature leaf to 2.5 m including the cirrus to 1 m and petiole to 15 cm. Leaflets 8-20 on each side of the rachis, borne on long stalks, narrow, to 30 × 4.5 cm, dark bluish-green on the upper surface, brownish on the undersurface, with frequent bands of deciduous chocolate-coloured scales. Inflorescences to 75 cm, highly branched; rachillae numerous, to 12 × 0.7 cm, dull brown tomentose. Fruit to 20 × 12 mm, covered in 19-21 vertical rows of straw-coloured scales. Seed 12 × 9 mm; endosperm deeply ruminate. Seedling leaf entire; juvenile leaves often very large and entire with blades reaching 100 × 30 cm. (Fig. 4, Pl. 1A).
Vernacular
Wi Danan (Ib.)
[PW]

Uses

Use
Produces a good quality rotan merah.
[PW]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Herbarium Catalogue Specimens

    • 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 2024. 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 2024. 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