Hydnocarpus anthelmintica (PROSEA)

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Plant Resources of South-East Asia
List of species

Hydnocarpus anthelmintica Pierre ex Lanessan

Protologue: Pl. util. colon. franç.: 303 (1896).


  • Hydnocarpus alpina Wight var. elongata Boerl. (1899),
  • Hydnocarpus alpina Wight var. macrocarpa Boerl. (1899).

Vernacular names

  • Sausage tree (En)
  • Chaulmoogra (Fr)
  • Burma (Myanmar): kalaw-wa
  • Cambodia: krabaou (Kompong Thom), krabaou phlae thom (Cambodge), krabaou thom (Pursat)
  • Laos: ka bao
  • Thailand: krabao (general), bao (peninsular), krabao yai (central)
  • Vietnam: chôm hôi (Thua Thien), chùm bao (Gia Dinh), phong tu-tu (Bien Hoa), chùm bao lớn, dại phong tử, lọ nồi.


Burma (Myanmar), Indo-China and Thailand; also cultivated within this region for its medicinal seeds.


The seeds are used as a vermifuge in Thailand and Vietnam. However, the use of the seed oil in the treatment of leprosy and other skin complaints is more important. This species is reported to be the source of almost all Hydnocarpus seed used in China.


  • A dioecious, small to medium-sized tree, 10-20(-30) m tall, outer bark lenticellate, greyish-black, inner bark brown.
  • Leaves ovate-lanceolate to ovate-oblong, 10-33 cm × 3-7 cm, coriaceous, glabrous, base cuneate to rounded-obtuse, usually asymmetrical, apex gradually long attenuate.
  • Inflorescence a 2-3-branched cyme, few-flowered.
  • Flowers 5-merous, white or greenish, scented, female flowers with 5 fusiform staminodes.
  • Fruit globose, 8-12 cm in diameter, brownish tomentulose, exocarp 0.2 mm thick, mesocarp yellowish, very hard.
  • Seeds 30-50(-100) per fruit, ovoid, compressed, 1.5-1.8 cm × 1-1.5 cm.

H. anthelmintica occurs in evergreen forest and is locally common along river banks, at elevations up to 1300 m. It may well be grown in the Malesian region.

Selected sources

202, 260, 293, 294, 364, 843, 900, 1035, 1126, 1128, 1287, 1376, 1378, 1392. medicinals


  • Khozirah Shaari & L.S.L. Chua