Fructus Tsaoko
Source
Fruit of Amomum tsa-ko Crevost et lemaire, family Zingiberaceae.
Characteristics
Fruit long-elliptic, obtusely trigonous, 24 cm long; surface grey-brown,
with
numerous ridges, tip bearing round persistent calyx scars, base remaining
with carpopodium or its scar. Carpodermis hard and tough, easily torn
longitudinally, containing three seed masses. Aromatic in odour. Acrid
in taste, warm in nature, and attributive to spleen and stomach channels.
Indication
Warm the middle-jiao and deprive dampness, eliminate sputum and stop the
episodes of malaria: For cold-dampness of spleen and stomach with feeling
of fullness, oppression, distending pain in the abdomen and loss of 
appetite,
used together with Semen Alpmiae KcItsumadai, Rhizoma Atractylodis, etc.;
for dampness-retention syndrome or malaria with feeling of oppression
in the chest, white and thick, turbid and greasy fur, usually used with
Semen Arecae, Cortex Magnoliae Officinalis, Radix Scutellariae, etc.
Administration Decoction: 3-10g.