Cultivation - Is san pedro desinctive looking? Or are their look-alikes?

[Swimster]

I see round san-pedro looking cacti all over my town. some yards have like 50 round cacti in one spot. My question is if the round looking cacti is distinctive to san-pedro or a mescaline containing cactis? Or are ther san pedro look-alikes?

[CrookedEye]

There are lots of trichocereus/echinopsis cacti that look very similar to one another, and that is why there is a lot of confusion in the taxonomy of trichocereus cacti. The number of ribs, spines, the spines color and length, and more, are ways to classify the cacti, but SWIM isn't an expert. Perhaps providing photos of the cacti in question will allow some of the more experienced members to identify the species/strains. Also, what do you mean by round? San Pedro and other trichocereus tend to be columnar cacti, while the shorter round cacti, can be lophophora (peyote) or another number of species.

[Swimster]

Myabe ill post pics later. thanks. by round i meant non-flat blade type ones or whatever you want to call them.

[Potter]

I was in a wonderful mood tonight so I posted A bare bones attempt at a key for Trichocereus species of interest. I think this will be most helpful in your endeavors.

Reputation Comments on this post:

Its nice that you posted that link

[Swimster]

Thanks man^ i appreciate it...