unknown

[gehcole]

I saved these ones from a quiet unhealthy environment. They seem to do well. But I have no idea as to their identification. Someone can help me?

[KittieKAT]

Looks like a very burned fairy castle cacti but I'm not to sure, but thank you for saving this guy, i do the same at places

[Saxicola]

It might be a Euphorbia. If I could see the stems more close up I could better determine that. You could test yourself by poking it with a needle. If it bleeds white sap it is a Euphorbia not a cactus.

[DaveW]

Stapelia or a Stapeliad of some type?

[Aiko]

I think this is a cactus. I believe I had one like it many many many years ago. Don't know the name.
But as Saxicola mentions: it could be helpful if you could stick a needle in it to see if it will bleed a white sap. I am not expecting it, though.

[gehcole]

IMG_0889 (Mobile).JPG (44.97 KiB) Viewed 1136 times

I tried the needle technique. Indeed it bleeds white latex.

[Brunãozinho]

It looks like Euphorbia resinifera.

[gehcole]

Thank you all. I ´ll stick with resinifera.

[hegar]

I also agree with the genus Euphorbia, because it looks like there are two spine-like thorns originating at each "bump". I am not sure, what this structure is called for Euphorbia members, but for cacti the name would be "tubercle" and "areole". Euphorbias do have either two thorns or at times four, if they have "spines" at all. Some do have single, long, tooth-pick like thorns, that are usually arranged haphazardly.
While it is true, that this genus "bleeds" a white, milky, irritating sap, this "feature" can also be encountered with some of the Mammillaria cactus genus. However, the cactus sap is not irritating to skin, especially mucous membranes, i.e. eyes and mouth.

Harald

[greenknight]

Only cacti have areoles, that's what distinguishes them from non-cactus succulents. They are enlarged buds, often fuzzy, from which spines, bristles, hairs, flowers in some cases, or even leaves grow. A tubercle is just a bump, I think that would be the correct term to use for the bumps from which Euphorbia thorns grow.

Yes, some Mammillarias have milky sap. You can be certain this is not a Mammillaria, though, because they don't have ribs - the tubercles are distributed uniformly over the entire body of the plant.