Gama

I found a strange plant which is said Gama. The berry which looks like sausage is called "Gama-no-ho". I like to see this berry from when I was child.
There is a Japanese mythology which treat about this berry. The mythology says that following story.
A pitiful rabbit wept at seaside, because he was stripped his skin by shark. A tender god ravel out the berry and make soft cotton. And, he roll up the rabbit by the cotton.
I can't understand the deep meaning about this mythology. But, it stood out in my memory.