All and each is Dyckia fosteriana true true one.
We found some two dozens different looks in a very same species in
The idea of Dyckia species being like a red army (all and each soldier looking exactly the same) is a seriously wrong one.
Maybe, in future times descriptions will use pollen and DNA to determine what is what in Dyckia.
When I see an "expert" ou connoisseur discussion on Dyckia species I usually step backwards. Why do we all insist in drawers and sharp divisions is something to think about.
One must see Dyckia in nature to have even a very fragile idea of Dyckias.
Those who never set an eye on Dyckia in nature will not understand Dyckia at all.
Greenhouse and windowsill Dyckia experts will never realize what Dyckias hide and show.
We are all learners and we must sit so, like one willing to learn.
Plants are now being understood as living beings capable of communication and capable of having "feelings" as fear, joy....
I myself, I think I am capable of knowing right away if the plant is happy or not.
A happy Dyckia shows its happiness to anyone with a heart (or not).