I agree. I think the correct spelling is Thrixanthocereus (note the 'h') but there are many entries on Google under both spellings, so plenty to choose from. The hairs are only supposed to be on young plants but yours looks quite old. Perhaps they are applying the same interpretation of 'young' as I...

I have one very similar as Crassula picturata but I see there is a Crassula picturata cooperi on Google or even Crassula exilis cooperi.

Phil in Somerset, UK

I'm using bottled water for my carnivorous plants and they are thriving, whereas tap water would kill them. I also use it for my cactus seeds, but I couldn't afford to use it for the plants. I don't know what it costs to buy it in bulk though. We have it at work for the public and don't charge for i...

The one you have as T. pachanoi might be T. bridgesii! I was going to say that the spines were way too short in your first picture. That one looks like Myrtillocactus geometrizans to me but I expect someone will say it's a Stenocereus. I always get them confused. I got some T. pachanoi plants off eb...

That's the one. I don't know if it is a synonym or, if not, what the difference is. I can't find much on Google about it. Maybe someone can enlighten us. There seem to be montrose forms of several Cereus species, sometimes called monstrosus. I have one that I bought for the office to counter the emi...

I was given one just like yours Sue, only mine hasn't produced a straight piece yet. As the others say, definitely not a Mammillaria and most likely a Cleistocactus. The difference between the two parts of the plant is in the growing point. Normally it grows from a single point radiating outwards bu...