Flos Caryophylli
Source
The flower bud of Eugenia caryophyliata Thunb., family Myrtaceae.
Characteristics
Flower bud small club-shaped, 1-2 cm long; upper end nearly globular 
formed
by the cluster of 4 perianths; lower end cylindrical and tapering downwards.
Surface red-brown, with granular protrusions, oil trace presenting when
cut with fingers. Aromatic in odour. Acrid in taste, warm in nature, and
attributive to spleen, stomach and kidney channels.
Indication
1. Warm the middle jiao and lower the adverse rising energy: For stomach-cold
syndrome with vomiting, hiccup, poor appetite and loose stool, usuaily
used together with Rhizoma Pinelliae, Fructus Amomi.
2.
Warm the kidney and strengthen yang: For impotence due to yang-deficiency.
Pharmacological
Action
1. Causing hyperemia of gastric mucosa, increasing secretion of gastric
fluid and promoting appetite by oral administration.
2. Bacteriostatic.
3. Its volatile oil can relieve toothache caused by dental caries.
4; Its decoction or alcoholic extract can paralyse Ascaris akita and A.
suis in vitro.
Administration Decoction: 2-5g.