The hills of California are blooming.
All of the flowers, 31 pictures in all, over the next three posts, were taken on the bottom half of the San Merrill trail, [link to my blog post on hiking this trail], just above the city of Alta Dena.
I have done my best to name some of the flowers, but I am not a botanist and some I could not find.
If you know the names, please tell me so I can update this post.
Dandelion
Taraxacum officinale
Mustard
Hirschfeldia incana
Mustard
Hirschfeldia incana
California Poppy
Eschscholzia californica
Yellow Star-Thistle
Centaurea solstitialis
Prickly Pear Cactus
Opuntia engelmannii
Phacelia
(I counted 235 variations on this flower and could not decide on which specific variation was this flower)
Spanish Broom
Spartium junceum (syn. Genista juncea)
Great shots! The yellow one with the bee on it is some sort of mustard and the second photo from the bottom looks to be some sort of Phacelia. If you want to find out the rest I’d suggest searching Calflora.org or uploading them to iNaturalist.org. There are some experts there who would almost certainly be able to tell you what they are.