4. Chiranthodendron Pentadactylon
Remember that scene in Alien? If you need to jog your memory, one glance at this evil-looking blossom should do it. The Devil’s Hand does have the appearance of a hellish hand grabbing for your soul; to make things just a bit creepier, it grows up to 90 feet tall! This Mexican native has homeopathic properties that have made it popular among locals and native populations.