Hazardia squarrosa is a North American species of shrub in the family Asteraceae known by the common name sawtooth goldenbush. It is native to California in the United States and Baja California in Mexico.Calflora taxon report, University of California, Hazardia squarrosa (Hook. & Arn.) E. Greene, saw toothed goldenbush, sawtooth goldenbush SEINet, Southwestern Biodiversity, Arizona chapter photos, description, distribution map
Hazardia squarrosa grows in coastal and inland scrub and chaparral habitats. It a shrub of variable size, from low and clumpy to sprawling over tall. It is covered in thick, sharply toothed leaves a few centimeters long and is generally not very hairy or woolly. It bears numerous flower heads covered in greenish, pointed phyllaries and opening into an array of long yellow to slightly reddish disc florets but no ray florets.Flora of North America, Hazardia squarrosa (Hooker & Arnott) Greene, 1894. Saw-tooth bristleweed
Varieties Hazardia squarrosa var. grindelioides (DC.) W.D.Clark - from Monterey County to Baja California Hazardia squarrosa var. obtusa (Greene) Jeps. - Counties of Santa Barbara, Ventura, Los Angeles, Kern Hazardia squarrosa var. squarrosa - from San Benito County to San Diego County
References
External links Jepson Manual Treatment Calphotos Photo gallery, University of California