Is the Jasmine tea comprised of pure Jasmine flowers or is it just tea perfumed with Jasmine flowers?

Running out of the Indian market Brooke Bond tea I've been drinking so I bought a pound of Indian market Liptons though I find the western world Liptons tea bag tea too weak and insipid. Coupon for a box of their fancy triangular bagged tea helped, though I don't think they were expecting to redeem that against loose leaf tea.