What about a Dyckia lindelmar or a Dyckia marlindel?

Dycia marnier and Dyckia lindelvaldeae both are not self fertile!
They do not produce viable seeds by themselves.
They are not in love by the image in the mirror.
They need another not relative plant to produce fertile seeds.
As they are Dyckias this means,
they do not need another same species plant.
In fact they love the idea, they love strangers.....
Both species are breathtaking...now imagine what would come from
that passion.

This Above Dyckia lindelvaldeae takes rain and the raindrops
removed the silver scales so this nude appearance.

Above a Dyckia Marnier about blooming
and below a Dyckia lindelvaldeae

Both species take the longest time to produce seeds.
Here it takes five months since the fertilization.
The plant produces flowers at the beginning of Fall and it takes
all the winter time to produce the seeds.
So we are bond to produce the first ever:
Dyckia marlindel and
Dyckia lindelmar