Hello, long time lurker here. I would like to ask help regarding the identification of the following cacti, since I plan to obtain a few exemplars to work on my master's degree thesis (which, in short, is about using natural 5-HT2a agonists as anti TNFα-mediated inflammation agents).



They are advertised as just "San Pedro", to me they look like peruvians, but I am honestly not sure, at least they don't have the upwards areolae/spines associated with PC pachanois.

Thanks and best regards.

I am still working on my garden and building my own knowledge... Especially how to identify the different teachers...

But based off my own observations, in my own garden, I would agree with your assessment of those being puruviana.

Sorry I can't help with the exact classification but hey, I'd definitely eat those

Sounds interesting about your masters degree btw!

pics are not so clear, they look like a PC but better pics are needed. Try to take a small part to test the bitterness.

Those are nice! Thats not PC. Plants like that are hard to classify. Could be pachanoi or short-spined peruvianus. Could be macrogonus or even a hybrid. (Pachanoi, macrogonus, peruvianus are often quite similar to each other and end up being classified separately based on spine length when little else is known about a plant's origin and lineage). Your plants most closely resemble macrogonus but really could be any of the 3 species or a hybrid. I would be quite surprised if those plants did not have better activity than PC.

I agree with Grey Fox. Very probably not PC. Probably Pachanoi, possibly Short-Spined Peruvianus. Pretty, but I am biased

Here's a pic of some that was sold to me as Short-Spined Peruvianus. They are active. They aren't the most potent but they are my fastest growers, sometimes a foot and a half in a Season.

Very nice plant Wolf!

Here's a photo of a plant that was sold to me as Macrogonus. Long-spined pachanoi, macrogonus, and short-spined peruvianus all basically have the same phenotype. A plant being more glaucous in color would push it closer to the macro/peru category IMO.

OP those plants you posted look really nice, regardless of how they get classified.

Thank you everyone for your insights! I would also agree that its phenotype is ambiguous, and that probably flowering would be required to further solidify an identity, although I would also say that the prominent ribs might indicate water starvation.

I forgot to mention that this photo was snapped in a botanical market, and based on your remarks I am most definitely going to get at least one exemplar and attempt an extraction.

And speaking of extractions, I'm actually already halfway through an extraction of N,N-DMT from tepezcohuite, since that's another 5-HT2a agonist I'm going to evaluate for antiinflammatory effects.

Again, tanks everyone and best regards.