Hello again friends, does anybody know what sort of cactus this is?

It is a pilosocereus... the whool down the sides should allow you to figure out which specific one.

cereus forbesii
https://images-na.ssl-images-a...
quad-ribs, black spines.

cereus do not have hairs this one does.

There is no quad-ribbed pilosocereus. On top of that plenty of pilosocerei dont pop out hairs until they are adults...some not at all
https://www.gardentags.com/pla...
https://i.pinimg.com/originals...
https://www.kakteen.ch/wp-cont...
https://www.cactus26.com/1131-...
https://www.giromagicactusands...
also know under cereus vallidus
https://s3.amazonaws.com/plant...
https://cdn.shopify.com/s/file...
https://i.pinimg.com/originals...
https://www.cactiguide.com/gra...
They all cannot be wrong....

Also, pilosocerei are tuberculate...this isnt...

But this one does have hairs... show me a cereus forbesii picture with hairs... This is a young plant that will get more ribs as it grows.

mcvansoest said:But this one does have hairs... show me a cereus forbesii picture with hairs... This is a young plant that will get more ribs as it grows.

You do realize juvenile e.texensis are a lot more fuzzy than their adult counterparts, right?
http://www.cactus-art.biz/cata...
https://mesagarden.com/wp-cont...
Ive shown you matches of the plant.
YOU show me a pilosocereus seedling with 4 ribs and hair....
All i see are misnomers of plants ive allready owned(magnificus, pachycladus and leucocephalus, which DO NOT look like this)

I forgot to mention: did you forget about the monstrose cerei? They are also quite fuzzy...

even found photos of adults
https://www.palmenmann.de/medi...
https://scontent-iad3-1.cdnins...

I'm not sure what E. texensis has to do with this, and I'm not seeing hair on any of those pictures.

I still havent seen a pilosocereus with 4 ribs
And a lot of the photos do have hairs....depedning on how you want to look at it

skopjecollection said:I still havent seen a pilosocereus with 4 ribs

According to my cactus reference (Anderson), there are 6 species of Pilosocereus which may have 4 ribs when mature (names available upon request), and yet more which may have 4 ribs when immature. I recommend relying on a reputable source to back up your own experience. Just because you haven't seen it doesn't mean that it doesn't exist.

skopjecollection said:And a lot of the photos do have hairs....depedning on how you want to look at it

No, there are no hairs in those last two pictures, no matter how you look at it (unless maybe you used a microscope). None.

Baja_Costero said:

According to my cactus reference (Anderson), there are 6 species of Pilosocereus which may have 4 ribs when mature (names available upon request), and yet more which may have 4 ribs when immature. I recommend relying on a reputable source to back up your own experience. Just because you haven't seen it doesn't mean that it doesn't exist.



No, there are no hairs in those last two pictures, no matter how you look at it (unless maybe you used a microscope). None.

You seem to be forgetting 2 important factors: how many of those species are available in mass cultivation, and how many look like these?
Define" reputable"

I am not here to argue with you about reputability, Stefan. I am trying to help the original poster.

Pilosocereus species with 4 ribs (or more):

brasiliensis, catingicola, floccosus, fulvilanatus, oligolepis, pentaedrophorus

plus I would not exclude species with more ribs, as these may be immature plants. What Thijs said earlier.

I just bought the exact same plant at IKEA. Not labeled in any useful manner, but they are way too hairy to be any kind of Cereus.

Clearly someone has mass produced these, but did not bother to send them out with a proper identification.