Five Cactus/Euphorbia Identifications

[pone]

Here are five cactus/euphorbia. Can anyone identify any of them?

Are any of these considered rare plants?

#1

2020-08-14 17.38.45 (Custom).jpg (101.95 KiB) Viewed 523 times

#2

2020-08-14 17.39.26 (Custom).jpg (83.64 KiB) Viewed 523 times

#3

2020-08-14 17.39.52 (Custom).jpg (79.55 KiB) Viewed 523 times

#4

2020-08-14 17.40.19 (Custom).jpg (87.29 KiB) Viewed 523 times

#5

2020-08-14 17.47.43 (Custom).jpg (88.18 KiB) Viewed 523 times

[ImNotTelling]

2 Is euphorbia polygona
3 Is euphorbia resinifera
4 is a hybrid of obesa or possibly anopila
5 is a mammillaria. I think it could be heyderii or haageana, but need a closeup of the spine detail.
Most of these should be pretty common.
1 is an oddball though. Will get back on it in a few minutes.

[ImNotTelling]

Right, I think Euphorbia officinarum subsp. echinus. That one might be rare.

[pone]

@ImNotTelling Regarding #2, I have another thread here with a Polygona. That plant looks different. The plant in #2 has irregular spikes, some of which are quite a bit longer than others. The spine itself sticks out where those large spikes appear. The other Polygona I posted has more uniform spine.

[ImNotTelling]

Dont bother. I have had a polygona but also not polygona as well. No point in trying to ID it. Unless you can find the breeder or know its ancestry....or submit it to a genetics test...youre not going to find out. Mine had intermittent spikes. On and off for some reason. For all intents and purposes they are" polygona".

[esp_imaging]

Right, I think Euphorbia officinarum subsp. echinus.

That was my thought too. It's commonly sold as just Euphorbia echinus
At least one nursery in Europe mass produces these, and several in the US seem to stock them too.

As for the E. polygona, E. horrida looks similar too, and hybrids between them, or involving other species, are easy to produce.

E. anoplia looks good for the last one. Interestingly, it looks like the Huntingdon have (or had) this as a variety of E. polygona:
https://garden.org/plants/photo/412376/ ... %20Gardens

[pone]

Dont bother. I have had a polygona but also not polygona as well. No point in trying to ID it. Unless you can find the breeder or know its ancestry....or submit it to a genetics test...youre not going to find out. Mine had intermittent spikes. On and off for some reason. For all intents and purposes they are" polygona".

Looking around, it appears that Polygona has many variants, so probably that is the reason for the difference.

[anttisepp]

Mam. neither heyderi no haageana, first flat, second white, maybe matudae don't sure, have to see on large screen later again. IMHO