Echinopsis rhodotricha?

[Armen Tsirunyan]

I have a plant which people elsewhere have suggested is an E.rhodotricha. But I am having my doubts because

- The pictures on cactiguide are ambiguous and don't really look like my plan.
- Every description I read says it has large areolas whereas those of this specimen are barely 2 mm accross.
- Mine has 4-6 spines per areole whereas descriptions indicate more.
- The spines on mine are not firm, but long and bending, very slim.

So, does anyone have a better idea? No, I haven't seen flowers, unfortunately

[Kamos]

Ferocactus echidne ??

[Armen Tsirunyan]

That's an interesting suggestion! I'll keep it in mind if one day I see flowers. On the other hand, I am looking on different acanthocalyciums and some have a great deal of resemblance to this one. Could it be?

[vlani]

If you haven't seen flowers yet - it is likely a Fero

[greenknight]

I think Ferocactus echidne looks pretty likely,, though I do see a resemblance to Acanthocalycium spiniflorum.

[Armen Tsirunyan]

Thank you all! I now have three decent hypotheses! We'll wait and see!

[cactidan]

Ferocactus was my first thought before reading the other posts also.

[Armen Tsirunyan]

Update: This guy finally flowered for me this year. It is evidently Acanthocalycium spiniflorum (violaceum)

2018.06.24.16.23.45PHOTO_ID4117TAGS..IDS.58.END.JPG (81.17 KiB) Viewed 709 times

2018.06.27.20.06.55PHOTO_ID4122TAGS..IDS.58.END.JPG (86.99 KiB) Viewed 709 times