Alvordia | |
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Scientific classification | |
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Genus: | Alvordia T. S. Brandegee |
Type species | |
Alvordia glomerata T. S. Brandegee | |
Synonyms [1] [2] | |
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Alvordia is a genus of flowering plants in the family Asteraceae. It includes 4 species of shrubs which occur in the states of Baja California and Sonora, Mexico. The genus is characterized by having a secondary clustering of heads into compound units, so that what appears to be a single head is actually a group of heads packed together. [3] The genus is classified as a member of subtribe Helianthinae, the same subtribe that contains the common sunflower (Helianthus). Based on the reported chromosome counts, Alvordia includes both diploid and polyploid species, but the relationships among these have not yet been studied in detail. No chromosome count has yet been reported for the species A. congesta from Sonora, which was a later transfer to the genus. [2]
The genus is endemic to northwestern Mexico, known from the 3 states of Sonora, Baja California, and Baja California Sur. [4]
Melampodium is a genus of flowering plants in the sunflower family.
Palafoxia, palafox, is a genus of North American flowering plants in the Bahia tribe within the.
Porophyllum is a genus of flowering plants in the marigold tribe within the daisy family known commonly as the poreleaf genus.
Encelia is a genus of the plant family Asteraceae. It consists of shrubs of arid environments in southwestern North America and western South America.
Thymophylla is a genus of perennial flowering plants in the marigold tribe within the sunflower family. Pricklyleaf is a common name for plants in this genus.
Adenophyllum is a small genus of plants in the marigold tribe within the sunflower family. It contains ten species known generally as dogweeds.
Malperia is a North American plant genus in the boneset tribe within the daisy family.
Psilostrophe, the paperflowers is a genus of North American plants in the sneezeweed tribe within the sunflower family.
Pleurocoronis is a genus of North American shrubs or subshrubs native to the southwestern United States and northwestern Mexico. It is in the boneset tribe within the sunflower family. All known members had been considered members of the related genus Hofmeisteria before being moved to Pleurocoronis.
Trichocoronis is a genus of North American aquatic plants in the boneset tribe within the sunflower family. Bugheal is a common name for plants in this genus.
Arida is a genus of flowering plants in the daisy family, Asteraceae.
Hofmeisteria is a genus of Mexican flowering plants in the sunflower family.
Boeberastrum is a genus of flowering plants in the sunflower family, Asteraceae.
Hymenostephium is a genus of flowering plants in the family Asteraceae. It includes herbs and slender shrubs that occur from Mexico through Central America and into South America.
Sabazia is a genus of Colombian and Mesoamerican plants in the blackfoot tribe within the daisy family.
Rumfordia is a genus of Mesoamerican plants in the blackfoot tribe within the daisy family.
Coreocarpus is a genus of flowering plants in the family Asteraceae native to northwestern Mexico and southern Arizona.
Brickellia peninsularis is a Mexican species of flowering plants in the daisy family. It is native to western Mexico in the states of Baja California, Baja California Sur, and Colima.
Brickellia floribunda is a North American species of flowering plants in the daisy family. It is native to northern Mexico and the south-western United States.
Brickellia brandegei is a Mexican species of flowering plants in the daisy family. It is native to western Mexico from the states of Sonora and Baja California Sur.