Alchornea rugosa (Lour.) Müll. Arg

Last updated: 02 April 2015

Scientific Name

Alchornea rugosa (Lour.) Müll. Arg.


Adelia glandulosa Blanco, Alchornea hainanensis Pax & K.Hoffm., Alchornea javanensis (Blume) Müll.Arg., Alchornea petalostyla Airy Shaw, Alchornea pubescens Merr., Aparisthmium javanense (Blume) Hassk., Aparisthmium javanicum Baill. [Spelling variant], Cladodes rugosa Lour., Conceveiba javanensis Blume, Conceveiba latifolia Zipp. ex Span. [Invalid], Croton apetalus Blume [Invalid], Tragia innocua Blanco [Illegitimate] [1]

Vernacular Name

Malaysia Julong jantan, akar serimbong, rabu kumbang (Peninsular) [2][3]
Indonesia Kedung leutik, ki bewok (Sundanese); drejeg (Javanese); mentulan, meranak, ki sengat [2] [3]
Philippines Aguioi (Tagalog) [2]
Thailand Khaang poi (Central); sa maakfai (Loei); dap yaang (Chiang Mai) [2]
Vietnam B[oj] n[ej]t, dom d[os]m. [2]

Geographical Distributions

Alchornea rugosa is distributed from Burma (Myanmar), Indo-China, southern China and Thailand, throughout Malesia, to Australia (Queensland). This plant occurs in primary and secondary, evergreen and deciduous forest up to 1000 m altitude. It is one of the most common shrubs of Euphorbiaceae in Malesia. [2]

Botanical Description

Alchornea rugosa is a shrubs or small trees comes from the family of Euphorbiaceae [1]. They are usually 1.5-5m tall and are dioecious [4].

Branchlets pubescent when young, becoming glabrous. Stipules subulate of 5-7 mm with petiole 0.5-3 cm. The leaf blade is usually cuneate-obovate or elliptic to broadly lanceolate, 10-21 × 4-10 cm, thickly papery, base obtuse or slightly cordate, with 2 glands, stipels absent, margins serrulate, apex acuminate; venation pinnate, lateral veins 8-12 pairs. [4]

The inflorescence is terminal, branched, 7-25 cm, puberulent or glabrous; bracts triangular with 1.5 mm base usually with 2 glands [4]. Male flowers 5-11 per bract has pedicel of 0.5 mm with buds globose, of 1 mm in diameter, pilose; sepals 2-4; stamens 4-8. While female flowers have pedicel of 1 mm, pubescent with 5 sepals , triangular, pubescent; ovary densely puberulent; styles 3, filiform. 3.5-7 mm. [4]

Fruiting pedicel of 2 mm; capsule 3-lobed, with 8 mm in diameter, subglabrous. [4]

Seeds ovoid of 5 mm is brownish and verrucate. [4]


No documentation

Chemical Constituent

No documentation

Plant Part Used

No documentation

Traditional Use

No documentation

Preclinical Data

No documentation

Clinical Data

No documentation


No documentation


No documentation

Line drawing


Figure 1: The line drawing of A. Rugosa (Lour.). [2]


  1. The Plant List. Ver1.1. Alchornea rugosa (Lour.) Müll.Arg. [homepage on the Internet]. c2013 [updated 2012 March 23; cited 2014 July 25]. Available from
  2. Lemmens RHMJ, Bunyapraphatsara N. Plant Resources of South-East Asia No. 12: Medicinal and Poisonous Plants. Netherlands: Backhyus Publisher; 2003. p. 56.
  3. Herbal Medicine Research Centre, Institute for Medical Research. Compendium of Medicinal Plants Used in Malaysia. Volume 1. Kuala Lumpur: HMRC-IMR; 2002. p.26.
  4. Flora of China. Alchornea rugosa [homepage on the internet]. No date [cited 2015 Apr 2]. Available from: