Last week we were driving east of Picabo, Idaho and came across the bright yellow field of Canola.
Yellow
Wildflowers
There is a remote area inland from the Central Coast that becomes yellow after it rains.
Succulants in Yellow
I was driving through this community on the way home today and saw these succulents with really tall bright yellow corkscrew blooms. The speed sign in the right of the shot can give you a sense of their height.