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.
The color of watercolor paper varies from manufacturer to manufacturer and even between different types of paper made by the same manufacturer. Watercolor color can range from a warm, rich cream to a cold, blueish white. Descriptive names for watercolor paper colors include traditional, extra white, bright white, and absolute white.