You should have kept a few leaves to show your tea dealer, they ought to be able to tell my looking, feeling, and smelling.
Or, maybe if you showed them the canister, that could help, too.
Even if they don't carry it, perhaps they'll know what it is, and can steer you in the right direction!
(At least you've got it narrowed down to two sources.
I have a favorite cloth, but who knows where I got it. I'll never
find another one like it, again.)