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Is my plant Cephalocereus senilis or something similar?

Posted: Tue Feb 20, 2024 1:56 pm
by FuerroSquirtle
Just got this little guy for Valentine's day and the most similar thing to it i could find here is the old man cactus (Cephalocereus senilis) it's probably not it so i'd appreciate any help <3

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Tue Feb 20, 2024 4:23 pm
by Lucy_V
Mammillaria bocasana would be my guess

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Tue Feb 20, 2024 4:31 pm
by Nino_G
Lucy_V wrote: Tue Feb 20, 2024 4:23 pm Mammillaria bocasana would be my guess
I agree.

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Tue Feb 20, 2024 5:53 pm
by DaveW
The crown is etiolated through growing in too low light. The centre should have similar spination to the sides. If kept in good light it should improve.

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Tue Feb 20, 2024 5:59 pm
by FuerroSquirtle
DaveW wrote: Tue Feb 20, 2024 5:53 pm The crown is etiolated through growing in too low light. The centre should have similar spination to the sides. If kept in good light it should improve.
I keep it on the base of my east facing window - ive read that indirect light as such is okay, should i take it to direct sunlight sometimes?

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Tue Feb 20, 2024 8:50 pm
by anttisepp
Mammillaria glassii

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Wed Feb 21, 2024 6:08 am
by Nino_G
anttisepp wrote: Tue Feb 20, 2024 8:50 pm Mammillaria glassii
What makes you think that? In M. glasii central spines are same colour and barely distinguishable from radial spines, while the plant on the pictures above has brown, hooked central spines tipical of M. bocasana.

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Wed Feb 21, 2024 8:46 am
by gillinger
Nino_G wrote: Wed Feb 21, 2024 6:08 am
anttisepp wrote: Tue Feb 20, 2024 8:50 pm Mammillaria glassii
What makes you think that? In M. glasii central spines are same colour and barely distinguishable from radial spines, while the plant on the pictures above has brown, hooked central spines tipical of M. bocasana.
Are they hooked spines? I couldn't make it out, which made me doubt M. bocasana

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Wed Feb 21, 2024 1:29 pm
by Nino_G
gillinger wrote: Wed Feb 21, 2024 8:46 am Are they hooked spines? I couldn't make it out, which made me doubt M. bocasana
Pictures are not very good, true (nor are my eyes for that matter :D ). Maybe the author of the thread can enlighten us.

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Wed Feb 21, 2024 4:59 pm
by FuerroSquirtle
Nino_G wrote: Wed Feb 21, 2024 1:29 pm
gillinger wrote: Wed Feb 21, 2024 8:46 am Are they hooked spines? I couldn't make it out, which made me doubt M. bocasana
Pictures are not very good, true (nor are my eyes for that matter :D ). Maybe the author of the thread can enlighten us.
heh sorry about that, dont have the best phone camera...
the spines are definitely hooked though!

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Thu Feb 22, 2024 6:09 am
by greenknight
In either case, woolly cacti need strong light if they are to stay woolly. Introduce it to the sun gradually, it could easily sunburn in this condition.

I think it's M. bocasana - the central spines are brown, though you have to look very closely to see it.

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Thu Feb 22, 2024 10:13 pm
by Tom in Tucson
The advise from DaveW is good. Until it blooms, an ID is almost impossible to make. It could be a number of different species of Mammillaria. My guess: M. guelzowiana.

Re: Is my plant Cephalocereus senilis or something similar?

Posted: Thu Feb 22, 2024 10:42 pm
by FuerroSquirtle
Tom in Tucson wrote: Thu Feb 22, 2024 10:13 pm The advise from DaveW is good. Until it blooms, an ID is almost impossible to make. It could be a number of different species of Mammillaria. My guess: M. guelzowiana.
we'll see what happens then... thanks for the help everyone :)