I posted some pix elsewhere of this great group that is so incredibly abundant and variable in much of the West. Two more pix: the first is of the common form just west of Denver (much of it, alas, destroyed by housing) we call the snowball. There are white spined pedios elswhere in the West. I have a wonderful pale pink one from Monarch Pass, and I saw wonderful white spined pedios from Wyoming grown by Bob Johnson in Utah. But the soft pink flowers of our local frorm are the best in my opinion. Alas, it crosses much too easily!
The second picture is of var. robustior from the Pacific Northwest, a very different creature. Apparently, this clumps up in nature (our local forms rarely do) and has much larger, darker flowers. Very cool! Hope I can keep it going...
              
