Rusty Flatwoods is a complete revamp of Fallout 76's flora, and one of the biggest mods currently available. It retextures the vast majority of the game's trees, shrubbery, and the like, turning it into something that you'd expect to see in a STALKER game, or maybe even Fallout 3. The mod is currently in beta, mind, so there's bound to be problems here or there.
Credits: Spiffyskytrooper