Flavonoids in aerial parts of Persicaria mitis (Schrank) Holub

• Seventeen polyphenols were isolated from aerial parts of Persicaria mitis.
• The chemotaxonomic significance of isolated compounds was discussed.
• Potential chemotaxonomic markers for Persicaria mitis were proposed.

The study presents the isolation of seventeen polyphenols from aerial parts of Persicaria mitis comprising one simple chromone derivative (1) and sixteen flavonols (2–17). Compounds (1, 3–4, 8, 10, 12 and 15–17) were detected and isolated for the first time from investigated plant material. The chemotaxonomic value of all isolated compounds within Persicariai genus is discussed.