Peyote (Lophophora williamsii) is the sacred cactus of the Native American Church. The green parts are harvested for their mescaline, a potent entheogen. These specimens are for growing indoors.
These cacti should be grown for a couple of years before their green buttons can be harvested (which can be done without killing the cactus itself).
Peyote is legal in Sweden. However, since the cactus may contain Mescaline, it is not allowed to prepare / extract it, consume it or divide it into doses. For more and better information about what can be counted as a preparation etc., please read the ruling from the Swedish Supreme Court here:
http://www.hogstadomstolen.se/Domstolar/hogstadomstolen/Avgoranden/2014/2014-04-08 B 1062-13 Dom.pdf