Is the diameter of the stem
-> 5 inches or more
-> and fruits and flowers grow from the top of the stem?
Yes – the diameter of the stem is 5 inches or more and the fruits and flowers grow from the top of the stem go to 22, type of Barrel Cactus
No – the diameter of the stem is 4 inches or less and the fruits and flowers grow from the sides of the stem – pg 24 – Hedgehog Cactus