Anandakanda 2.1.266

2.1.266

pītaṃ kṛṣṇaṃ sitaṃ raktaṃ caturdheti pare jaguḥ /
<kāsīsa:: medic. properties>
kāsīsamuṣṇaṃ sakṣārakaṣāyāmlaṃ satiktakam //

Others say it is fourfold: yellow, black, white, and red.
<kāsīsa: medicinal properties>
Kāsīsa is hot, slightly alkaline, astringent, sour, and slightly bitter;