Compilation of herbal plants (description, geographical distribution, taxonomy, line drawings), biodiversity and herbarium.

Read More
Research & Publication

Description of herbal and T&CM research, searchable publication and process from medicinal plant discovery to clinical trial in producing a high-quality registered herbal drug.

Read More
Traditional & Complementary Medicine (T&CM)


Definition and description of therapies, policy, training and education, research in the practise of (T&CM) and integrated medicine system.           

Read More


News Update

Announcement & Advertisement

Forthcoming Events

Annual Congress on Traditional Medicine

From Wed, 12. May 2021 Until Thu, 13. May 2021

5th International Conference on Medical and Health Informatics (ICMHI 2021

From Fri, 14. May 2021 Until Sun, 16. May 2021

International Conference on Traditional Medicine and Phytochemistry 2021

From Mon, 12. July 2021 Until Wed, 14. July 2021

Asian Symposium on Medicinal Plants and Spices XVII (2020)

From Tue, 17. August 2021 Until Thu, 19. August 2021

Nephelium ramboutan-ake (Labill.) Leenh.

Nephelium ramboutan-ake (Labill.) Leenh.




Nephelium intermedium Radlk. p.p., N. mutabile Blume.

Vernacular Names

Buah mua (Iban, Sarawak), meritam (Sabah, Sarawak), pulasan (Peninsular).
Indonesia Kapulasan, pulasan (Sundanese).
Philippines Bulala (Filipino), karayo (Tagalog), malapution (Samar-        Leyte Bisaya).
Singapore Pulasan.
Burma (Myanmar) Kyetmauk.

Geographical Distributions

Nephelium ramboutan is distributed from India (Assam), Burma (Myanmar), Peninsular Malaysia, Singapore, Sumatra, Java (doubtful), Borneo and the Philippines; also planted locally and possibly indigenous in the Moluccas.


N. ramboutan is an evergreen, dioecious or sometimes monoecious, small to fairly large trees that can reach up to measure about 35(-44) m tall and it is rarely shrubs. The bole is usually fairly slender and straight or rather crooked, up to measuring 90(-140) cm in diametre, occasionally fluted and sometimes with buttresses which are up to measure about 2(-4) m high. The bark surface is smooth to slightly flaking or sometimes dippled and often lenticellate. The inner bark is brown to orange or red in colour.

The leaves are arranged spirally, paripinnate, 1-foliolate or 1-5(-18)-jugate and exstipulate. The leaflets are arranged alternate or occasionally opposite, often glaucous and with domatia below.

The flowers are in an axillary or terminal, thyrsoid inflorescence and unisexual (sometimes at least functionally so). The sepals are (4-)5(-6), which are free to connate in the lower half. The petals are 5(-6) where sometimes 1-4 are reduced or all absent. They are shorter than the sepal, clawed and with a bilobed scale inside. The disk is an entire. The male flowers are with 4-10 stamens. The female flowers are with a superior, (1-)2(-4)-locular and warty ovary with 1 ovule in each cell and 1 style.

The fruit is a 1(-3)-lobed, partly to irregularly dehiscing capsule and generally with a warty to spiny wall.

The seed is almost entirely covered by a sarcotesta. Seedling is with hypogeal germination. The cotyledons are not emergent while the hypocotyl is not elongated. The first pair of leaves is arranged opposite, paripinnate while the subsequent ones are with increasing numbers of leaflets.

Ecology / Cultivation

Timber-yielding species of Nephelium are generally found as middle storey trees in evergreen, lowland or sometimes montane, primary or sometimes secondary rain forest on hills and ridges, up to 600(-1950) m altitude. The habitat varies between species, but most are found in well-drained locations on sandy to loamy or clayey soils or on limestone, although several occur on river banks and in swamps.


Line Drawing / Photograph



    1. Plant Resources of South-East Asia No. 5 (3): Timber trees: Lesser-known timbers.

    Explore Further

    Consumer Data

    Consumer data including medicinal herbs, dietary supplement monographs, health condition monographs and interactions and depletions.                                    

    Read More
    Professional Data

    Professional data organized into medicinal herbs, dietary supplement monographs, health condition monographs, T&CM herbs, formulas, health conditions, interactions and depletions.

    Read More
    International Data

    We offer International linkages to provide extensive content pertaining to many facets of T&CM as well as Integrated Medicine. Please register for access.    

    Read More