Arecaceae
Calamus

Calamus lambirensis J.Dransf.

First published in Kew Bull. 45: 89 (1990)
This species is accepted
The native range of this species is Borneo (Sarawak, Brunei). It is a liana 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: threatened. Confidence: confident
[AERP]

Distribution
Known from Andulau and Bukit Biang and from the Lambir Hills National Park in Sarawak. Endemic to Borneo.
General Description
Slender clustering rattan climbing to 3 m; stem without sheaths 4-5 mm diam., with sheaths 8-10 mm diam., internodes c. 8-12 cm long. Sheaths dull dark green, drying brown, armed with scattered and partially whorled short triangular spines to 4 mm interspersed with very fine close, minutely spiny ridges encircling the sheath, grey indumentum abundant between the ridges; knee present but rather poorly developed; ocrea short, tattering, minutely ridged. Flagellum to 1 m or more. Leaf ecirrate, to c. 75 cm including the petiole to 13 cm; petiole armed with scattered reflexed and horizontal spines and a few ridges near the base; leaflets 9-13 on each side of the rachis, rather distant but ± regularly arranged, the longest to c. 25 × 1.5 cm, the shortest at the leaf tip c. 14 × 1.2 cm, rather narrow, gradually narrowed to a long slender tip, minutely bristly on the lower surface. Inflorescences flagellate, to c. 2 m, with about 3 very distant partial inflorescences; prophyll very tightly sheathing, elongate, armed with short prickles and ridges; partial inflorescences to c. 30 cm long, very lax and slender, bearing distant rachillae, the male to c. 3 cm, the female to c. 5 cm, each with distant large flowers borne on large flower cushions. Mature fruit ± top-shaped, c. 7 mm diam., conspicuously beaked, and covered in c. 15 vertical rows of chestnut brown scales. Seed c. 5 mm diam., rounded; endosperm homogeneous. Seedling leaf bifid. (Fig. 65).
Vernacular
Uwai Pagau (Dus., Br.)
[PW]

Uses

Use
Not known.
[PW]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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