Parmotrema perlatum, commonly known as black stone flower, is a species of lichen used as a spice in India. The species occurs throughout the temperate Northern and Southern Hemispheres. Typically used in meat dishes like nihari (paaya), Bombay biryani, and goat meat stews, it is also used in vegetarian dishes. It is one of the ingredients in East Indian bottle masala, used for cooking meats, fish, and vegetables.
|Botanical Name||Common Name||Tamil||Hindi||Malayalam|
|Parmotrema perlatum||Black Stone Flower||கல்பாசி||पत्थर का फूल / Pathar ka phool||ബദൽ പൂവേ / Badal Poove|