Baby columnar

[Pompom]

I found this little guy from black Friday sales. Is it too little to identify? It also has a weird way to grow. The match in one picture is supersized and I put it in there to support te cactus. If you know the species, what should I expect from it? How fast it'll grow?

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[ElieEstephane]

That would be a stenocereus. S. pruinosus is a possibility but as is griseus. It needs tò be bigger to confirm id.
What can you expect? Expect delicious fruits in a couple of decades
These are moderately fast growing in a suitable environment.

[Pompom]

Thanks for the fast answer! I'll wait it to grow bigger then. Will the spines always be easily detached? How careful I should be with this cutie? When I first got the plant home, it had already shed some of the spines in carriage bag and I stepped on one which had fallen on the floor. Oh the pain! I got another on my finger too, 'cause I wasn't careful enough. I didn't expect that since my mammillarias spines are firmly attached. Well every plant is different, of course.

[stefan m.]

Stenocereus grieseus. Easy plant, one of my favorites. Moderate speed(there are slower ones).

[teo]

Also have a look at nr. 10 in this list: http://www.cactiguide.com/most_common/

[stefan m.]

Sorry teo, but i have both and theyre not the same in terms
Areoles on one a bulged, the other are flat into the stem
One has darker spines, the other has slightly brighter
Spine number and arrangement is also different
Glaucosity is also different.
One is slightly wider. http://cactiguide.com/forum/viewtopic.p ... 17#p338058

[ElieEstephane]

I have to agree with stefan on this one teo. Pruinosus has less and thicker spines. It is very evident on young plants.
S. Pruinosus
"Ribs: 5-6 (rarely to 8 or even 10)" according to llifle. Rib number increases with age and the iDed specimen has 7 ribs as a seedling. Notice portuding areoles.

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S. Griseus

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Notice different areoles.

However, lots of hybrids exists in the stenocereus genus specially in Mexico, where they are improving them for better fruit production.