Trachyspermum involucratum (අසමෝදගම්)

 Trachyspermum roxburghianum (also known as Carum roxburghianum) is a flowering plant in the family Apiaceae. It is grown extensively in South Asia, Southeast Asia, and Indonesia. Its aromatic dried fruits, like those of its close relative ajwain, are often used in Bengali cuisine but are rarely used in the rest of India. The fresh leaves are used as an herb in Thailand and it is used medicinally in Myanmar and Sri Lanka.

Trachyspermum involucratum is part of the catalog of ayurvedic medicinal plants of Sri Lanka.