Identifying the type of mint. Just to confuse the picture even more, there is a chocolate mint which has purplish stolons. There are, in fact, hundreds of varieties of mint, some of which are commercially grown for oil extraction or for leaf drying, and a lot of which haven't even been given names, being known as Mint 341, etc.
Simply put, watercolor is a painting compound using water-soluble pigments that are either transparent or opaque. Because of the medium itself as well as the paper to which it is applied, watercolor is frequently thought of as a fugitive medium.
A palette is a range of colors. It is also the board that artists use to hold and mix paint. Picture Picasso in his blue period: He is holding a palette on which you see a limited palette of blue tones. Palette can refer to a range of colors. A platform used for moving things is a pallet.