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Characteristic pollen grains observed in the honey samples. (a) Acacia—Robinia pseudoacacia, (b) Amorpha—Amorpha fruticosa, (c) Phacelia—Phacelia tanacetifolia, (d) Linden—Tilia spp., (e) Sunflower—Helianthus annuus, (f) Chestnut—Castanea sativa, (g) Fennel (Foeniculus vulgaris)—Apiaceae pollen, (h) Meadow sage (Salvia pratensis)—Lamiaceae pollen. Scale bar = 25 µm.
