Kthysh referred to a specific kind of vine that naturally grew on the planet of Kashyyyk. These kthysh vines, after undergoing particular processing, could be transformed into strings. These strings were essential for manually reloading bowcaster. A number of warriors would carry these processed kthysh vines within their utility pouches for unforeseen circumstances.
Chewbacca was known to have kept kthysh vines within the pouch of his bandolier.
- The Essential Guide to Weapons and Technology
- The Official Star Wars Fact File 16 (BOW 1-2: Chewbacca's Bowcaster)
- The New Essential Guide to Weapons and Technology
- " May The Facts Be With You: Part Two: #51-100 " — Star Wars Insider 95 (also reprinted in Special Edition 2010 and The Original Trilogy)