Here is a photo of the same species from the San Pedro Annex, where it bloomed just a week or so ago. Photos that I find online have varying degrees of the purple blush at the petal ends to a full blush along the length of the petal. You can see a fine purple tint in the photo above at the petal end. I think that the blush grows along the petal as the flower matures.
Castilleja affinis, most likely), and I saw multiple instances of it. I recently read that it is a parasitic plant that requires the roots of other nearby plants to feed from. That just makes it more interesting to me.
*20 mile circumnavigation of the Palos Verdes Peninsula