Castes and Tribes of Southern India/Jammi
Jammi (Prosopis spicigera). — A gōtra of Gollas, members of which may not use the tree. It is further a gōtra of Chembadis. Children of this caste who are named after the caste god Gurappa or Gurunāthadu are taken, when they are five, seven, or nine years old, to a jammi tree, and shaved after it has been worshipped with offerings of cooked food, etc. The jammi or sami tree is regarded as sacred all over India. Some orthodox Hindus, when they pass it, go round it, and salute it, repeating a Sanskrit verse to the effect that "the sami tree removes sins; it is the destroyer of enemies; it was the bearer of the bows and arrows of Arjuna, and the sight of it was very welcome to Rāma."