As it turns out.
Honey bees, due to their numerous colonies (consisting of tens of thousands of individuals), usually focus on mass-flowering plants. It is these sources of nectar that forager bees find and lead collecting groups to. As a result, the honeycombs are filled almost exclusively with honey obtained from the nectar of one species.
This allows beekeepers to distinguish between linden, buckwheat, sweet clover, and other types of honey. However, many plants can bloom simultaneously in a meadow, which bees visit. Honey collected from mixed sources is sold under names such as "meadow," "mountain," and "May."
Interestingly, a worker bee collects only 0.8 grams of honey during its entire life, which lasts about six weeks.