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

Hydnocarpus alcalae C.DC.

Hydnocarpus alcalae C.DC.





Vernacular Names

Philippines Dudoa (Bikol).

Geographical Distributions

Hydnocarpus alcalae is found in Philippines (southern Luzon), but planted and naturalised elsewhere in Malesia.


Hydnocarpus alcalae is a small tree or shrub that can reach up to 4-7 m tall and with smooth branches.

The leaves are ovate-oblong, measuring 15-25 cm x 7-11 cm, subcoriaceous, with very asymmetrical base and acuminate at apex.

The inflorescence is a pseudo-racemose panicle measuring 15-30(-60) cm long. The male inflorescence is in fascicles of 3-4 while the female inflorescence is solitary, cauliflorous or ramiflorous. The flowers are 5-merous, greenish white or cream.

The fruit is obovoid, pendent, measuring 15-31 cm x 8-15(-20) cm, and dark brown with purple and greenish spots. The exocarp is 0.3-0.7 mm thick while the stony mesocarp is 6 mm thick. The soft endocarp is 7 mm thick and with 80-110 seeds.

The seeds are nearly globular or ellipsoidal, measuring 3-5 cm x 2.5-3 cm, with a pale yellow aril, and embedded in a fragrant and astringent pulp.

Ecology / Cultivation

Hydnocarpus alcalae occurs naturally in moist ravines.

Line Drawing / Photograph



  1. Plant Resources of South-East Asia No. 12(1): Medicinal and poisonous plants 1.

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