Wonderful collomia pictures, David. The scree was steep and very slidey, as you say. I tried going up and it was one step up and slide down again. That is the same spot where we saw them along with a few other plants. Apparently the plant is soboliferous (great word), meaning as the scree shifts down the roots lengthen and the plant can be anchored some distance above. It really was my favorite and someone collected some seed for me later that year from this same population. Germinated a few plants, put them in scree, they grew enough to see the wonderful leaves and then were eaten by some critter. It was called Collomia debilis v larsenii. The straight Collomia debilis from the Wallowas has purple flowers (smaller) and grew fairly easily in scree for quite a few years.