Buckwheat
This medicinal herb typically grows to a height of 30 to 70 cm or more. The stem is cylindrical, with branches at the upper part, and it displays a light green or yellow-green color. It is smooth and hairless, with distinct nodes that are slightly swollen. The stem is lightweight, brittle, and easily broken, often having a hollow interior. The leaves are usually shriveled, but when flattened, they take on a linear-lanceolate shape. The base of the leaf is clasped by the stem. The flowers and fruits appear as clusters along the branches. The calyx is tubular in shape, measuring between 2.7 to 3.7 cm in length. Beneath the calyx, there are 4 to 6 bracts, which are broad and oval-shaped, roughly one-fourth the length of the stalk. The petals are brownish-purple or brown-yellow in color, curled, and their tips are often torn into thin, frayed strips. The fruit is a capsule that resembles a longan in shape, elongated and tuber-like. The seeds are small and generally odorless with no distinct taste. The preferred color for this herb is a pale yellowish-green.
In terms of flavor and properties, it is bitter and cold in nature. It is traditionally used to clear heat, promote diuresis, and improve blood circulation. It is commonly prescribed for conditions such as urinary tract infections, kidney stones, bloating, and urinary retention. The typical dosage ranges from 9 to 15 grams, depending on the condition being treated. This herb is often recommended for its cooling and detoxifying effects, making it a valuable component in traditional herbal remedies.
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