Biluochun (Chinese: 碧螺春) is a famous green tea originally grown in the Dong Ting mountain of Tai Hu, Jiangsu Province, China. Also known as Pi Lo Chun, it is renowned for its delicate appearance, fruity taste, floral aroma, showy white hairs and early cropping.
The name Biluochun literally means "Green Snail Spring". It is called so because it is a green tea that is rolled into a tight spiral, resembling snail meat, and is cropped early spring.
Biluochun is divided into seven grades in decreasing order of quality: Supreme, Supreme Ⅰ,Grade Ⅰ,Grade Ⅱ,Grade Ⅲ, Chao Qing Ⅰ, and Chao Qing Ⅱ.
There are a number of firms marketing this tea.
More information on the Wikipedia page [1].