Red Ghost Pen, also known as Deep Red Ghost Pen, is also called Long Worm Flower. Because it smells like chicken excrement in Hakka dialect, it is also called chicken excrement fungus.

It belongs to the fruiting body of the fungi of the order Ghost Pen, and has a nearly bell-shaped lid and a net-shaped lattice.

Most red ghost pens grow in places with a lot of humus, such as bamboo forests.