They are large, and shaped like giant oval jars. If something falls into one of these, they do not come out. It is not uncommon to see Jar Plants, with a large corpse on the ground, decaying, because they got their toe stuck in it. Jar Plants will usually survive on a single meal for years, if not decades, at a time. It is theorized that a way to stop them is a good deal of ice, but because of Hell’s constant heat, the proper conditions are nearly impossible to achieve.