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

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

Bidens pilosa

Bidens pilosa




Bidens sundaica Blume, Bidens leucorrhiza (Lour.) DC., Bidens pitoga L. var. minor (Blume) Sherff.

Vernacular Names

Malaysia Kancing baju, pall-pall pasir, keroten.
English Black jack.
Indonesia Ajeran, hareuga (Sundanese), jaringan, ketul (Javanese).
Papua New Guinea Ivu na mag (Gunantuna, New Britain), rakot (Kurtatchi, Bougainville).
Philippines Dadayem (lbanag), burburtak (Ilocano), pisau-pisau (Bisaya).
Thailand Puen noksai. (northern), kee nok sai, yaa koncham khaao (central).
Vietnam D[ow]n bu[oos]t, t[uwr] t[oo] hoang, q[ur]y tr[aa]m th[ar]o.
French Sornet.

Geographical Distributions

B. pilosa originates from tropical America but is now distributed and naturalised as a weed in most tropical and subtropical regions of the world, even sometimes extending into some temperate areas. In South-East Asia it is common in many places, except in Kalimantan and the Moluccas.


This is an annual and erect herb that is up to 1(-2) m tall. Its stem is 4-angled, hairless or sparsely hairy. The leaves are arranged opposite, pinnately 3-5-lobed and the lower and/or upper leaves are occasionally simple, up to 15(-20) cm long. They are hairless or sparsely hairy on both surfaces. The margin is usually serrate or crenate-serrate while the segments are egg-shaped to lance-shaped. The first apex terminal with a stalk is the largest. The 5-12 mm flower head is solitary or in lax paniculate cymes. The cyme usually radiates. The outer ring of flower stalk consists of 7-10 petals size 3-4 mm x 0.5-0.8 mm and they are spoon-shaped, abruptly bent during pollination. The inner petals are egg-shaped-lance-shaped with ray flowers absent or 4-8 but sterile. The petal is 7-15 mm long, white to yellow or pinkish while the disk flowers are 3.5-5 mm long. The fruit is linear with 4-6 ribbed. The fruit size is between 4-13 mm long with 2-3(-5) 2-4 mm long retrorsely barbed bristles. (1)

Ecology / Cultivation

B. pilosa is a very common weed of sunny, often disturbed places like roadsides, fields, thickets and along water-courses, up to 2500 m altitude.

Line Drawing / Photograph


Read More

  1) Safety



  1. View Abstract: Plant Resources of South-East Asia No 12(1). 1998, .

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