I need help identifying one of my old neglected-so-far cacti. Unfortunately and somewhat deservedly, it has not flowered for me yet.
- It is the size of an apple (since I have treated it horribly, or more precisely, not at all, it may well be undersized for its 10-year-old age)
- It has multiple (~20) prominent ribs. The ribs are straight (I'm thinking therefore this is not an Echinofossulocactus ( = Stenocactus)
- It has fibrous roots (I haven't got a picture of the roots, but I have repotted it recently and you will have to take my word for it)
- It has 4-6 spines per areola, one of which is noticeably longer than the others, reaching up to 3 cm in length. The spines aren't very strong, i.e. they'd rather bend than cut through the skin.
- The plant appears dusty, but if one takes a closer look, it seems the "dust" is some sort of wool on the stem. I don't know. Maybe not.
I am thinking of Echinopsis (in the broad sense of the term, e.g. including Lobivias (Lobiviae?)) but because of the quantity of the species in the genus and the variability of plants I am having a hard time. Hope I'll get some good guesses here.