Hazardia is a small genus of North American flowering plants in the family Asteraceae. Plants in this genus may be called bristleweeds or goldenbushes.
Ericameria bloomeri is a species of flowering shrubs in the daisy family known by the common names Bloomer's rabbitbush and Bloomer's goldenbush. This plant is native to the mountains of western North America from British Columbia to California, including Washington, Oregon, Idaho, and Nevada. Some sources say it has probably been extirpated from Canada.
Ericameria ericoides, known by the common names California goldenbush, mock heather, and California heathgoldenrod, is a species of flowering shrubs in the daisy family. It is endemic to California, where it grows in the sand dunes and coastal hills between the northern San Francisco Bay Area and the Los Angeles area.
Ericameria laricifolia is a North American species of flowering shrub in the daisy family known by the common name turpentine bush, or turpentine-brush. It is native to the southwestern United States and northern Mexico (Chihuahua).
Ericameria pinifolia is a species of flowering shrubs in the daisy family known by the common name pinebush. This plant is native to southern California and northern Baja California.
Hazardia cana is a rare North American species of shrubs in the family Asteraceae known by the common names Guadalupe hazardia, San Clemente Island hazardia, or simply island hazardia. It is native to San Clemente Island, one of the Channel Islands of California, and to Guadalupe Island.
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.
Heterotheca sessiliflora is a species of flowering plant in the family Asteraceae known by the common name sessileflower false goldenaster. It is native to California, Sonora, and Baja California.
Cirsium rhothophilum is a rare North American species of thistle known by the common name surf thistle. It is endemic to California, where it is known only from the coastline around the border between San Luis Obispo and Santa Barbara Counties. It grows in sand dunes and coastal scrub near the beach.
Enceliopsis covillei, known by the common name Panamint daisy, is a rare North American desert species of flowering plant in the family Asteraceae.
Ericameria greenei is a species of flowering shrub in the daisy family known by the common name Greene's goldenbush. It is native to the mountains of the western United States in Washington, Idaho, Oregon, and the northern California as far south as Lake and Tuolumne Counties.
Eriophyllum jepsonii is a rare North American species of flowering plant in the family Asteraceae known by the common name Jepson's woolly sunflower. It is endemic to California, where it has been found in the Central Coast Ranges and adjacent hills from Contra Costa County to Ventura County.
Constancea is a monotypic genus of flowering plants in the family Asteraceae containing the single species Constancea nevinii, which is known by the common name Nevin's woolly sunflower. It is endemic to three of the Channel Islands of California, where it grows in coastal scrub habitat. This is a small shrub or subshrub generally growing up to one or 1.5 meters tall, and taller when an erect form, with a branching, woolly stem. The whitish, woolly oval leaves may be up to 20 centimeters long and are divided into many narrow lobes with edges curled under. The inflorescence is a cluster of 10 to 50 or more small flower heads, each on a short peduncle. The flower head has a center of hairy, glandular, star-shaped yellow disc florets and a fringe of four to nine yellow ray florets, each about 2 millimeters long. The fruit is an achene a few millimeters long with a small pappus at the tip.
Hazardia brickellioides is a species of shrub in the family Asteraceae known by the common name brickellbush goldenweed. It is native to the Mojave Desert of California and Nevada, where it grows in rocky limestone habitat.
Malacothrix squalida is a rare species of flowering plant in the aster family known by the common name Santa Cruz desertdandelion. It is endemic to Santa Cruz and Anacapa Islands, two of the eight Channel Islands of California, where it grows on rocky seaside bluffs and cliffs. The plant is very limited in distribution and today exists only in degraded habitat on these two small islands. It was last collected from Santa Cruz Island in 1968, and two populations were noted on Anacapa Island in 1998; in drought years there may be no plants at all. It became a federally listed endangered species in 1997. This is an annual herb growing a hairless, waxy stem 20 to 30 centimeters in maximum height. The leaves are sharply lobed. The inflorescence is an array of flower heads lined with oval-shaped phyllaries. The ray florets are 1 to 2 centimeters and light yellow in color.
Hazardia orcuttii is a rare North American species of flowering plant in the family Asteraceae known by the common names Orcutt's bristleweed and Orcutt's goldenbush. It is native to California in the United States and Baja California in Mexico. It can be found in one location in California, in the city of Encinitas. There, it is located in and near a protected zone known as the Manchester Conservation Area. In Baja California it can be found at 11 to 17 locations.
Ericameria parishii, or Parish's rabbitbrush, is a western North American species of flowering plants in the daisy family.
Hazardia berberidis is a Mexican species of shrub in the family Asteraceae. It grows in both states of the Baja California peninsula in northwestern Mexico: Baja California and Baja California Sur.
Hazardia stenolepis, the serpentine bristleweed, is a North American species of shrub in the daisy family. It has been found only in California in the western United States, and in Baja California in northwestern Mexico.
Hazardia whitneyi, common name Whitney's bristleweed, is a North American species of shrub in the daisy family. It has been found only in the states of Oregon and California in the western United States.
