Ayurvedic Herb - Asafoetida ayurvedic herb Asafoetida Botanically known as Ferula assa-foetida, it is a member of the Apiaceae plant family and the commercial part used is the oleo-gum resin extracted from the thickened roots and rhizomes. It is best for colic and other digestive disorders. Heeng is a popular spice all over the world and is used as a digestive aid, flavoring agent and as an important ingredient in food varieties.