Amomum krervanh (PROSEA)
Amomum krervanh Pierre ex Gagnep.
- Protologue: Bull. Soc. Bot. Fr. 53: 138 (1906).
- Round Siam cardamom, comphor seed (En)
- Cambodia: kreko krervanh, karvanh, krewanh
- Thailand: krawaan khaao (central)
- Vietnam: bạch dậu khấu, sa nhân nam vang.
Laos, Cambodia, Vietnam, southern China and Thailand; also cultivated there.
Fruits are used to treat indigestion, liver and uterus diseases, rheumatism, diarrhoea and asthenic after dysentery, and as febrifuge, antiemetic and antitoxic of alcohol. In Indo-China, they are traded as a condiment and spice.
A large herb up to 300 cm tall, with superficial rhizome; leaves lanceolate, up to 60 cm × 12 cm; inflorescence cylindrical to conical, up to 11 cm long, bracts about 4 cm long, bracteoles tubular at the base; flowers with corolla tube about as long as calyx, labellum elliptical, rounded at apex, white with a yellow patch in the centre and yellow at margins, anther with a 3-lobed appendage; fruit about 1.5 cm in diameter, slightly ribbed. A. krervanh occurs in Cambodia and Vietnam in mountainous regions, and could well be cultivated in mountainous areas in Malesia. It is possibly conspecific with A. testaceum Ridley from Thailand, Peninsular Malaysia and Borneo.
455, 699, 1035, 1126, 1227.
Nguyen Quoc Binh