Dark green dragons, once they mature, appear to become an entirely different species. However, this isn’t true. Rather, they burrow underground and get nutrients from their vines. These vines are sometimes referred to as Dragon Grass. These dragons are very violent, and will use their vines to capture, kill, and eat anything that moves, as well as nearby plants. Luckily, their range is limited and they cannot use magic. Dark green dragons tend to be easy to spot since they usually kill all plants around them and thus are usually surrounded by a large clearing.
Ogrepit got his name by dragging those entwined by his vine down into the pit where he lives. Onlookers thought it was an ogre in there before they discovered it was something much more fearsome.
Despite warning signs, sometimes folks still wander near Ogrepit. He has developed a technique of making his vines dance in interesting patterns, to attract onlookers to venture closer. Once they are within range, SNAP! He whips entangling vines around them to bring them in for dinner - and not as his guest.