Hazardia squarrosa, commonly known as sawtooth goldenbush, is a perennial shrub native to the coastal sage scrub and chaparral of California and Baja California. It exhibits a variable growth habit, typically forming a low, clumpy mound but can reach over 6 feet in height. The plant is characterized by its thick, sharply toothed leaves and its numerous flower heads, which consist of greenish, pointed phyllaries surrounding long yellow to slightly reddish disc florets; notably, it lacks ray florets. Flowering occurs from late summer to fall, and the blooms are attractive to a variety of pollinators.

Sawtooth goldenbush is valued for its drought tolerance and ability to thrive in poor, well-drained soils, making it a suitable choice for xeriscaping and native plant gardens. It is often used for habitat restoration projects and as an ornamental in dry gardens. In cultivation, it requires minimal water once established and prefers full sun to part shade. While generally low-maintenance, it can be prone to root rot if overwatered. There are no widely recognized cultivars of this species, but its natural form is well-regarded for its resilience and the textural interest it adds to landscapes.CC BY-SA 4.0