Few-flowered Collinsia or Spinster's Blue-eyed Mary (Collinsia sparsiflora)
California Saxifrage (Micranthes californica, formerly Saxifraga californica)
I was especially intrigued by the saxifrage flowers (below). I think the colorful structures are the stamens — the male reproductive parts that release pollen. However, what's the difference between the red and purple stages? Are the little red parts (that look a bit like hearts) "covers" that will eventually fall off to reveal the purple and orange parts below? (Is the orange pollen?) If you know, please write in!