The Caltha Fosteri is an uncommon, giant plant and can be found only on small tropical islands. It blooms once a year, for 1 month. It has thick, circular leaves, which are usually yellow-green. It also grows tiny flowers, which can be dark bronze, dark pink, light red and brown. These plants grow in tiny groups, but it's hard to control and maintain their growth. They can be eaten to relief a sore throat. As a defense mechanism the Caltha Fosteri grows stinging hairs, like a nettle. They rely on winds to carry their seeds away to reproduce. Once pollinated, they grow fairly large, inedible fruits.