The Ziost'tak was a rare tree found on the dark world of Ziost. It was noted for its quality of being resistant to lightsabers. The tree could grow to 45 meters high, and three meters wide at the base, though they rarely grew this large. The wood was as hard as most metals, and the often had spikes emerging from the sides. It was known that many dark side users possessed one, in order to afflict a slower, more painful death upon their victims.