Very interesting hybrid

[ElieEstephane]

I came across this very interesting plant. Apparently it's a hybrid between haageocereus decumbens and echinopsis subdenudata.
It's really nice to see such different plants can create such a hybrid!
Credits to Tony Marino (instagram/pricklypunk)
I highly recommend visiting his page. He has a lot more of interesting hybrids with haageocereus and much more.

[Spikylover]

I thought you can only cross species of the same genus like trichocereus and lobivia which are both echinopsis. Or like gasteria and aloe which have resemblance (if that's what you call it)
Aren't these 2 genera too different to be able to cross or am i missing something about crossing species? (Something about same number of chromosomes since each species supplies half the chromosomes).
A question to someone reading with the knowledge... is hybrid A x B the same as BxA? Or it's the pollen receiver (ie the one that is gonna make the fruit) that is predominenrly present in the resulting hybrid? Like here i see mostly E. Subdenudata that turned columnar so basically the echinopsis was pollinated with haageocereus and not the other way around? What i mean is if the haageocereus was pollinated with E. Subdenudata the resulting hybrid would look more like Haageocereus...
Very cool plant nevertheless. Thanks for sharing

Rachel

[ElieEstephane]

Hello Rachel.
I can't answer any of your questions since i absolutely have no idea!
What i can say though is that both these species are night flowering and stay open for the morning so perhaps that adds to their compatibilty ( not that you can cross echinopsis subdenudata with night flowering saguaro )

[esp_imaging]

Many cacti can produce inter-generic offspring.
Ferobergia (Ferocactus x Leuchtenbergia) is one well known cross-generic hybrid one using North American parents.
For South American species, there are lots of genera which have the capacity to fertilise different genera. Hence hybrids such as Denmoza x Cleistocactus, Echinopsis x Cleistocactus and Haageocereus x Espostoa can be produced.

Hybrid A x B is not the same as BxA. In fact all versions of Hybrid A x B are not the same, as each pollen cell and each egg cell are genetically different.
Clearly most of the time, they will be very similar to one another, but there wil be a range of different characteristics.
This is just the same as humans - we are not genetically identical to our siblings (identical twins excepted), although we are more-or-less similar.

[ElieEstephane]

Following your reply i did some research and i found a very similar looking plant labelled Echinopsis x Cleistocactus strausii.
It's very interesting to look at such plant and see the similarities to their parents. I really like the combined details in flowers!
This is all new information for me.