The Deathworld Trilogy, by Harry Harrison

This is a trilogy of stories by Harry Harrison, set on the galaxy's deadliest planets. The hero's craving for adventure and high stakes drove him to travel to a death-prone planet where all living things were focused on bringing death and destruction. It was a place where a fatal blow could come as easily from beautiful flowering plant as from a horrifying flying beast. The adventure continues through three exciting novels guaranteed to provide hours of science fiction captivating adventure.