creeping cactus ID
I am looking for what would be called a cactus that grows on the ground. I thought it would be creeping, but when I looked that up, I only find creeping devil cactus, that is not the right plant. These are growing on the ground in the cactus green house. What is the name of the habit that indicated that it grows on the ground?
Here is a link that might be useful: link to photo of cactus in question