About 20 plants scattered among the rocks in this mid-slope outcrop. Sizes varied from about 5 cm tall to 20 cm tall. Plant in photo probably 15 to 20 cm tall.
Thanks for the link, but I beat you to it and already had a look for "evidence" of the pinkish outer petals (calyx?) after your ID. Tricky plants! But it serves me right for wanting to ID before the flowers are open.