The concept of hiding cell towers as local flora isn't especially new (we've covered less sophisticated models here before). But these particular images come from the lens of German photographer Robert Voit, who's made it his business to catalog the impostors since 2003. As he told PopPhoto:
"I was working on a project about the Christmas season, and I was searching the Internet for production facilities for [fake] Christmas trees," Voit recalls. "I had in my mind an overview of a plastic forest in one of those plants. But when I came across a picture of a mobile-phone tree online, I immediately left everything behind! I refocused and it turned into another story."
Since then, Voit's traveled the world with his Linhof 4x5 and Deardorff 8x10 cameras. Some of his subjects are hideous, some beautiful, and the most successful—like this Scottsdale, AZ cactus tower—are perfectly attuned to their surroundings.
Head over here for the full gallery, and keep an eye out for suspicious trunks.