Chinese water chestnuts taste sweet and are still crunchy even when cooked. Due to possible parasites, they can only be eaten raw and if washed well. Organic?
The wax gourd, also known as winter melon, is grown mainly in Asia and Florida. It is used raw as a vegetable (organic?) or, for example, as winter melon soup.
The harvest of summer squash, which cannot be stored, takes place before it ripens in the summer. These include different varieties of different types of squash
The cyanobacteria Spirulina (powder etc.) can practically never be bought raw. Because of their blue pigment, they were previously classified as blue-green alga
Jacket potatoes are (raw) potatoes that have been boiled in salt water with their skins on until soft. Organic potatoes can also be eaten with the skin on.
The velvet foot bolete or enoki is popular in Asia, where it is cultivated. The natural winter mushroom is in season from September to April (raw?, organic?).
Mace is the seed coat of the nutmeg (mace flower). When ground, it is used as a spice in the kitchen and has an aromatic, resinous, slightly bitter taste.