Each species is described on two pages, is perfectly identifiable, it is compared with related species when the determination is more difficult. Text sometimes looser from geographic data, scientific arguments to more personal impressions. The area is indicated to clarify the geographical distribution of the species in Burgundy and French situation as it is wise to emphasize the relationship with neighboring regions. Burgundy is a true global hub, mapping understanding is an excellent illustration of various regional influences. The significant biological characteristics of plants were mentioned whenever this was possible, as the etymology for understanding the origin of the names and memorize better.