Bristleweeds | |
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Hazardia squarrosa | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Subfamily: | Asteroideae |
Tribe: | Astereae |
Subtribe: | Machaerantherinae |
Genus: | Hazardia Greene (1887) |
Species [1] | |
11; see text | |
Synonyms [2] | |
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Hazardia is a small genus of North American flowering plants in the family Asteraceae. Plants in this genus may be called bristleweeds or goldenbushes. [3]
Hazardia is native to the western United States and northwestern Mexico, including offshore islands in the Pacific. The genus is especially common in California, and on the Baja California Peninsula in Mexico, with a few species extending into Oregon and Nevada. [3] [4] They are short, hardy perennials or small leafy shrubs. Some species have sharply toothed leaves. Generally they bear yellow flowers, with some having ray florets and appearing somewhat daisylike while others have only disc florets. [5]
The genus was named after amateur botanist Barclay Hazard of Santa Barbara, 1852–1938. [3]
11 species are accepted. [1] [6] [7] [8]
Ionactis, common name stiff-leaved asters or ankle-asters, is a small genus of plants belonging to the family Asteraceae. These aster-like plants are endemic to North America. One species is widespread across much of the eastern half of the continent, while two others are rare endemics with very restricted ranges.
Heterotheca is a genus of North American plants in the family Asteraceae.
Isocoma, commonly called jimmyweed or goldenweed, is a genus of North American semi-woody shrubs in the family Asteraceae. It is found in the semi-arid areas of Southwestern United States and Mexico.
Ericameria nauseosa, commonly known as chamisa, rubber rabbitbrush, and gray rabbitbrush, is a shrub in the sunflower family (Aster) found in the arid regions of western North America.
Erigeron foliosus, known by the common names leafy daisy and leafy fleabane, is a North American species of flowering plants in the family Asteraceae.
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 detonsa is a rare species of shrub in the family Asteraceae known by the common name island bristleweed. It is endemic to the Channel Islands of California, having been found on 4 islands.
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.
Isocoma acradenia is a North American species of flowering plant in the family Asteraceae known by the common name alkali goldenbush.
Isocoma menziesii is a species of flowering plant in the family Asteraceae, known by the common name Menzies' goldenbush.
Adiaphila 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.
Nemacladus is a genus of flowering plants in the bellflower family known generally as threadplants. Species are native to the southwestern United States and northern Mexico. These are annual herbs with very slender, sometimes threadlike, branching stems bearing small five-lobed flowers.
Ericameria gilmanii is a rare North American species of flowering plants in the family Asteraceae known by the common names Gilman's ericameria, Gilman's goldenbush, Gilman goldenweed, and whiteflower goldenbush. It is endemic to California, where it has been found in and east of the southern Sierra Nevada, in Inyo County and on Owens Peak in northeastern Kern County. It is a poorly known plant. There are six known populations, but only one has been observed in the last 20 years. Updating as of 2023, several observations of at least two populations have been observed since 2011.
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 family Asteraceae.
Adeia whitneyi, common name Whitney's bristleweed, is a North American species of shrub in the daisy family. It has been found only in the state of California in the western United States.
Hazardia rosarica is a species of flowering shrub in the family Asteraceae commonly known as the El Rosario goldenbush. Hazardia rosarica is a fragrant shrub characterized by its zigzagged branches, toothed glutinous leaves, and yellow flower heads of only disc flowers. This species is endemic to Mexico and is only found in the region near of the town of El Rosario in Baja California. It is usually found on north and east facing slopes and ridgetops close to the coast.
Erythranthe, the monkey-flowers and musk-flowers, is a diverse plant genus with more than 120 members in the family Phrymaceae. Erythranthe was originally described as a separate genus, then generally regarded as a section within the genus Mimulus, and recently returned to generic rank. Mimulus sect. Diplacus was segregated from Mimulus as a separate genus at the same time. Mimulus remains as a small genus of eastern North America and the Southern Hemisphere. Molecular data show Erythranthe and Diplacus to be distinct evolutionary lines that are distinct from Mimulus as strictly defined, although this nomenclature is controversial.
Adeia is a genus of flowering plants in the sunflower family, Asteraceae. It includes two species of perennial herbs native to California and Oregon.
Adeia discoidea is a species of flowering plant in the sunflower family, Asteraceae. It is a perennial herb or subshrub native to California and Oregon.