Juniper bark, Cottonwood inner bark also work very well for a tinder bundle. If you have Pine trees in your area, you are sure to have some "fatwood" "pitchwood" or whatever you call it locally. It is the yellowish, hard, pitchfilled wood from an old stump or fallen tree. Where a branch joint was usually. Have someone that knows wood point out how to find some, it is all over in a pine forest. Shave some of that into a tinder nest and spark away, should take right off. You can buy fatwood at most grocery stores, it is used to help light fireplaces and usually on the isle with the charcoal and lighter fluid, comes in a package. That will let you practice lighting the fatwood. Hope that helps.
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No, I am not Bear Grylls, but I stayed at a Holiday Inn Express last night and Bear was there too!