Initially I thought that it was Lilicaceae Allium nevadense but when I looked it up on the internet, Lilicaceae Allium nevadense is white with pink stripes whereas mine is yellow.
Asteraceae (sunflower) flower, basal leaves, yellow flowers with many petals, leaves a cloudy green
Characteristically shaped yellow petals, small green leaves, pea pod looking fruits, often found on the side if the freeway.