There are many kinds of Fritillaria, each of which is graded. The best is definitely expensive ~ ~ that is, fish-eye shellfish, which is not big, and don't buy especially white ones, because they are smoked with sulfur. I want the one with a slight yellow and black color. A little ~ ~ not special. There is no obvious bug eye on the shell.

Fritillaria thunbergii and Fritillaria cirrhosa are totally different medicines ~ ~ Don't buy it wrong.