Trichocereus spachianus,Trichocereus Macrogonus and Stenocereus hystrix

[downwardsfromzero]

How do I tel if it is really Trichocereus Mcrogonus Or if it's mislabeled B. Hertlingia??

So, if it's Browningia hertlingiana syn.Azureocereus hertlingianus, syn. Clistanthocereus hertlingianus the lobes will be wavy like this:

On the Trichocereus they will be straighter:

(honestly, if I can look this stuff up, so can you!)