Latin name: Parmelia perlata
Sanskrit / Indian name: Shaileyam
- Parmotrema perlatum, commonly known as black stone flower or kalpasi, is a species of lichen used as spice in India
- The species occurs throughout the temperate Northern and Southern Hemispheres
- Typically used in meat dishes like nahari, Bombay biryani, 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
Stone Flowers are lichens growing in rosettes or spreading irregularly over the substratum, which gives the appearance of a flower. It is mainly composed of fungal mycelia, which forms a network enclosing algal cells.
The plant has astringent, bitter, acrid, cooling, anti-inflammatory and aphrodisiac properties.
Usnic acid is the key active component of Stone Flowers, which have antimicrobial and anti fungal properties.