Epipetalous stamens
hebaceous
woody at base
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
Found on the side of the road.
Fairly low to the ground
Characteristically shaped yellow petals, small green leaves, pea pod looking fruits, often found on the side if the freeway.