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Table 4 Regional Selection Index for each food-category

From: Traditional knowledge of wild edible plants used in the northwest of the Iberian Peninsula (Spain and Portugal): a comparative study

Food category SAN CAU PIL PIC CPO MON Mean
Fruits 0.40 0.29 0.50 0.93 0.79 0.50 0.57
Subterranean organs 0.40 0.33 0.50 0.80 1.00 0.33 0.56
Flowers 0.14 0.20 0.29 0.33 0.71 0.40 0.35
Herbal teas 0.30 0.18 0.43 0.46 0.57 0.86 0.47
Liqueurs 0.44 0.21 0.29 0.63 0.38 0.79 0.47
Vegetables 0.19 0.10 0.27 0.58 0.73 0.64 0.42
Seasoning 0.23 0.30 0.20 0.36 0.33 1.00 0.40
Total RSI 0.37 0.31 0.43 0.68 0.73 0.70