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Table 7 Concentration of medicinal plants in homemade single species herbal remedy reports (HSHR) for topical use. Data from Italian speaking regions (ItR), German speaking cantons (GeC), and from earlier Swiss studies [22] are compared with recommended concentrations from literature

From: Swiss ethnoveterinary knowledge on medicinal plants – a within-country comparison of Italian speaking regions with north-western German speaking regions

Plant species with ≥ 3 reported HSHR and documented dosage g of dry plant equivalent in 100 g finished product Recommended concentration g dry plant equivalent in 100 g finished product [3942]
Arithmetic mean (median; minimum value- maximum value; number of UR for which concentration has been estimated) Determined concentration in previous Swiss study [22]
ItR GeC
Arnica montana L.
herba and flos
1.37 (1.14; 1.00–2.50; 7) - 2.87 2.0 – 10−33
Calendula officinalis L.
herba, flos, and flos sine calice
2.68 (2.00; 0.48–5.56; 9) 1.10 (0.83; 0.22–3.33; 6) 1.10 0.67– 1.0 – 1.3 – 5.0 – 20 – 50
Hypericum perforatum L.
herba and flos
2.40 (2.50; 1.85–2.86; 3) - 1.58 5.0 – 10 – 11
Malva neglecta L.
herba, herba cum radix, and flos
0.31 (0.40; 0.13–0.43; 5) - 0.79 -
Matricaria recutita L.
flos
0.58 (0.50; 0.50–0.75; 3) 1.00 (0.50; 0.15–3.52; 6) 1.52 0.50