Duvalia are a mutant variety of Type 3 Plaga, which emerges from its Majini host by destroying the entire upper body. It appears as a large flower-like parasite with thick armor on the outside of its body. Its weak points are the fleshy "tail" that hangs off its back (the remains of the host's upper torso/ribcage), and the fleshy core of the shell, which is only exposed when the Duvalia is about to attack the player or if shot in the legs repeatedly.[excerpt 1] In addition to these, and the usual weakness to bright light, a Duvalia can be blown to pieces with a single hand grenade if the explosive hits the core. It is also the type of Plaga with the least appearances of all.