Figure 2.

Portions of forward (top) and reverse (bottom) Sanger sequencing chromatograms demonstrating polymorphic positions (alignment positions 77 and 88) in herbal supplement mini-barcode sequences of a Type C sequence. Diagnostic nucleotides (Figure 1) are indicated by their alignment position; “A” = green; “G” = black; “K” = maroon {GT}; “M” = indigo {AC}; “T” = red. Despite the supplement being labeled as containing only H. procumbens, alignment position 76 indicates that this sample is composed exclusively of H. zeyheri.