[Sca-cooks] Asafetida leaves and terebinth berries

[galefridus at optimum.net]

I've been looking at the seasoned salt recipes in Annals of the Caliphs' Kitchens, ch. 21. One or two specify an ingredient that isn't in the others, but otherwise they're all pretty similar.
 
One ingredient specified by all the recipes is asafetida leaves (NOT the resin/root, which is also specified in all the recipes). Is anyone aware of a source for the leaves? I can find the resin/root no problem at any one of the many South Asian groceries near where I live, but I haven't found the leaves.
Another ingredient specified in only one of the recipes is terebinth berries -- from what I can tell, the terebinth is related pistachio, but that's about all that I've managed to figure out. Again, any information on sourcing this ingredient would be very helpful.
-- Galefridus