Hazardia squarrosa is a species of shrub in the Asteraceae (Sunflower) family known by the common name Sawtooth Goldenbush. It is native to California and Baja California, where it grows in coastal and inland scrub and chaparral habitats from Monterey County southward. This is a shrub of variable size, from low and clumpy to sprawling over two meters tall. It is covered in thick, sharply toothed leaves a few centimeters long and is generally not very hairy or woolly. It bears discoid flower heads covered in greenish, pointed phyllaries and opening into an array of long yellow to slightly reddish disc florets and no ray florets. There are three recognized varieties with largely overlapping ranges. In the garden it provides long lasting summer color and is popular with many insects including butterflies. Also valuable in restoration projects.