Yes, the cacti sold as san pedro in north america and to a large extent in australia and europe is a particular and rather peculiar clonal line 'PC' or 'Backberg Clone' that has low to extremely low mescaline content. Its easy to spot tho.

Ironically, genuine pachanois are often mistaken for peruvianus or macrogonus in the US market due to their spines being over 4 mm long. They are even some times branded as 'short spine peruvianus' to exploit the peruvianus popularity and to hint that they are actually of worthwhile potency.