In my mind I have them as closer to isthmensis - highly mammilate, clustering. But the populations in Mexico are so variable that they could all just be potatorum anyway. The first four pics on this page of one of my travelogues show plants in the same population along the same stretch of road withi...

My opinion, fwiw, is that your plants is too big and solitary for a versch. and is a potatorum.

Or maybe consider a polytunnel? They are cheap but effective, especially if it is only a temporary measure.

Thanks Ray.
Yes - just. I planted it this year, one of a few old plants I re-homed earlier in the season. Its in the 'new bit' so planted in rubble.

I have a book he co-wrote with Cheryl W Green called 'Prickly Pears' but I find the layout a bit confusing. The website is a lot clearer. Back in the infancy of the internet there was a email group called 'Too Cold For Cactus' and DJF was a regular conbtributor. I always looked forward to his commen...

Thank you Tom. That is an incredible resource! I only know a little bit about opuntias and it seems what I thought I knew is wrong!

Slightly off my radar but I think this might be macrocentra? No pic of flowers, sadly.

Muchas gracias

I have quite a few, Andy, as there is going to be a section on this in my book. I'll PM you at some point soon.

A swift follow up asking for money!

I also had an unexpected message from him, though not asking for money.