Mule's Ears
Canon EOS REBEL T4i
Canon EF100-400mm f/4.5-5.6L IS USM
1/250 s
f 5.6
100
285 mm
Albums: Skyline Gardens Project — Mar. 24 2022

The sign for Mule's Ears, next to a patch of different yellow flowers.

My best guess is that it's Sticky Monkeyflower, but I'm not completely sure.