4
votes
1answer
89 views

identify the type of cactus

My friend showed me this picture of a cactus and we would like to buy one. The problem is we don't know the name. Does anybody recognize it? Does it produce flowers?
8
votes
1answer
783 views

What is this white growth on my cactus?

I have several cacti growing in my yard and one (t. pachanoi, if it matters) has developed a white layer across the top of the plant. It is very fine and looks almost sandy, like perhaps a mould or ...