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 Congress on Drug Delivery

From Mon, 5. October 2020 Until Tue, 6. October 2020

Global Pharmaceutical and Pharma Industry Conference

From Mon, 12. October 2020 Until Tue, 13. October 2020

14th International Conference on Pharmaceutics and Drug Safety

From Wed, 21. October 2020 Until Thu, 22. October 2020

Seminar Tumbuhan Ubatan, Beraroma dan Pegetahuan Tradisi 2020

From Tue, 10. November 2020 Until Wed, 11. November 2020

2nd International Conference on Natural Products & Traditional Medicine

From Mon, 16. November 2020 Until Tue, 17. November 2020

Calotropis gigantea

Calotropis gigantea




Asclepias gigantea L.

Vernacular Names

Malaysia Remiga, rembega, kemengu.
English Crown flower, giant Indian milkweed.
Indonesia Bidhuri (Sundanese, Madurese), sidaguri (Javanese), rubik (Aceh).
Philippines Kapal-kapal (Tagalog).
Laos Kok may, dok kap, dok hak.
Thailand Po thuean, paan thuean (northern), rak (central).
Vietnam B[oot]ng b[oot]ng, l[as] hen, nam t[it] b[at].
French Faux arbre de soie, mercure vegetal.

Geographical Distributions

From India and Sri Lanka to Thailand and southern China, naturalised in Malesia and Hawaii in coastal areas.


This species is a large shrub or small tree, about 3-4(-10) m tall. Its stems are erect, up to 20 cm in diametre.

The leaves are broadly elliptical to oblong-obovate in shape, with the size of 9-20 cm x 6-12.5 cm but subsessile. The cymes are 5-12.5 cm in diametre.

The inflorescence stalk is between 5-12 cm long, the stalk of an individual flower is 2.5-4 cm long. Sepal lobes are broadly egg-shaped with a size of 4-6 mm x 2-3 mm. Petal is 2.5-4 cm in diametre The petal lobes are broadly triangular measuring 10-15 mm x 5-8 mm; they are pale lilac and cream coloured towards the tips. The outgrown like structure from the petal (corona) has 5 narrow fleshy scales, connected to and shorter than the staminal column, forming an upturned horn with 2 obtuse auricles on either side, cream coloured or lilac to purple, with a dense longitudinal dorsal row of short white hairs.

The egg-shaped or boat-shaped fruits are mostly in pairs, inflated, 6.5-10 cm x 3-5 cm.

Ecology / Cultivation

C. gigantea is a common weed in open waste ground, roadsides and railway lines, as well as village surroundings.  It grows especially on littoral sandy soils and dry uncultivated land, with periodic dry periods.

Line Drawing / Photograph


Read More

  1) Poisonous Plant


  1. Plant Resources of South-East Asia No 12(2). 1998, Unesco.

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