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Morphometric parameters obtained for leaves and roots of the investigated C. vulgaris populations (NN—from Nasiłów, NP—from Pińczów, and MB—from a metalliferous area in Bolesław). Data are means ± SE. According to Fisher's test (p < 0.05), the values followed by different letters are significantly different, the values followed by the same letter are not significantly different, and “ab” indicates that there is no difference between values followed by a and b letters.
