plantmanager said:Here are some native U.S. Mammillarias.
http://www.americansouthwest.n...
This link made me question my identification of the Mammillaria heyderi. I'm still not certain, but at the bottom of this link there is a photo comparison between M. heyderi and M. meiacantha:
http://www.cactusconservation....
If I'm recalling correctly, I think it was the placement of the spines that was the ultimate deciding factor. The one that grows here on the farm looks like the heyderi. If any one has input on the i.d., it would be welcome. I can always go to either/or.
That description of them getting flat in dry conditions is very true. Even getting below the soil level at times. I have a few that have crept into the edge of the yard and they tend to be safe from the mower blades even on a reasonably low setting. But in the wet years I can skim the top mowing. Those are the ones I've tried to domesticate and grow in containers. But I've found they are going to need winter protection when they are container grown.
I guess we're getting way off topic on dyed and glued plants here.
edited to add the link
