Andrographis (Andrographis paniculata) is a bitter-tasting flowering herb in the Acanthaceae family native to India and tropical parts of South and Southeast Asia. It grows upright with slender green stems, narrow leaves, and small white flowers marked with purple. The leaves and aerial parts are the portions most commonly used in traditional herbal preparations.

In traditional Ayurvedic, Siddha, and other Asian herbal systems, andrographis is valued as a strongly bitter herb used in teas, powders, and liquid extracts. It is commonly discussed in relation to seasonal wellness, digestive bitterness, and classic cleansing formulas, and its intensely bitter taste is one of the features for which it is best known.