Plectritis sp. from just a little earlier in the hike. Again, either P. macrocera (Gray's seablush) or P. congesta subsp. brachystemon (short spur sea blush). No spur suggests congesta but radial corolla suggest macrocera.
2018Morgan FirePFPlectritisSF Bay AreaValerianaceaeWildflowers
From Mt Diablo: The fifth April after the fire - April 15 2018