1. Xinjiang paper walnut, whose shell is as thin as paper, will break when you pinch it. Its meat is yellow and tastes delicious.
2. Xinjiang sweet meat walnut, white meat, sweet, fragrant, thick skin, hard shell.
3. Yunnan walnut, also known as iron walnut, Yangbi walnut. The stone is oblate and spherical, with carved lines on the surface. The seed coat is yellowish white, very thin, and the kernel is yellowish white or yellowish brown, with pure flavor.
4. Shangluo walnuts are very nutritious, contain more fat and protein, and taste oily and strong, white and yellow as jade.
5. Lin'an hickory has round and thin shells, plump nuts, crispy and delicious.