Gaillardia is a genus of flowering plants in the family Asteraceae, native to North and South America. It was named after Maître Gaillard de Charentonneau, an 18th-century French magistrate who was an enthusiastic botanist. The common name may refer to the resemblance of the inflorescence to the brightly patterned blankets made by Native Americans, or to the ability of wild taxa to blanket the ground with colonies. Many cultivars have been bred for ornamental use.
Nolina is a genus of tropical xerophytic flowering plants, with the principal distribution being in Mexico and extending into the southern United States. They are large, dioecious plants.
Melampodium is a genus of flowering plants in the sunflower family.
Rudbeckia is a plant genus in the Asteraceae or composite family. Rudbeckia flowers feature a prominent, raised central disc in black, brown shades of green, and in-between tones, giving rise to their familiar common names of coneflowers and black-eyed-susans. All are native to North America, and many species are cultivated in gardens for their showy yellow or gold flower heads that bloom in mid to late summer.
Hechtia texensis, commonly known as Texas false agave, is a species of bromeliad that is native to the Trans-Pecos of Texas in the United States and northeastern Mexico.
Bouteloua is a genus of plants in the grass family. Members of the genus are commonly known as grama grass.
Amsonia is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1788. It is native primarily to North America with one species in East Asia and another in the eastern Mediterranean. It was named in honor of the American physician John Amson. Members of the genus are commonly known as bluestars.
- Amsonia ciliataWalter – fringed bluestar – SE US, S Great Plains
- Amsonia elliptica(Thunb. ex Murray) Roem. & Schult. – Japanese bluestar – China, Japan, Korea
- Amsonia fugateiS.P.McLaughlin – San Antonio bluestar – New Mexico
- Amsonia grandifloraAlexander – Arizona bluestar – Arizona, Sonora, Durango
- Amsonia hubrichtiiWoodson – Hubricht's bluestar – Arkansas, Oklahoma
- Amsonia illustrisWoodson – Ozark bluestar – Mississippi Valley, also Nevada
- Amsonia jonesiiWoodson – Jones' bluestar – Arizona, New Mexico, Utah, Colorado
- Amsonia kearneyanaWoodson – Kearney's bluestar – Baboquivari in Pima Co. in Arizona
- Amsonia longifloraTorr. – tubular bluestar – Arizona, New Mexico, Texas, Coahuila
- Amsonia ludovicianaVail – Louisiana bluestar – Louisiana, Mississippi, Georgia
- Amsonia orientalisDecne. – European bluestar – Greece, Turkey
- Amsonia palmeriA.Gray – Palmer's bluestar – Arizona, New Mexico, Texas, Sonora, Chihuahua
- Amsonia peeblesiiWoodson – Peebles' bluestar – Arizona
- Amsonia repensShinners – creeping bluestar – E Texas, SW Louisiana
- Amsonia rigidaShuttlw. ex Small – stiff bluestar – from Georgia to Louisiana
- Amsonia tabernaemontanaWalter – eastern bluestar – S + C + E United States
- Amsonia tharpiiWoodson – feltleaf bluestar – W Texas, SE New Mexico
- Amsonia tomentosaTorr. & Frém. – woolly bluestar – SW US; Chihuahua
Thymophylla is a genus of perennial flowering plants in the tribe Tageteae within the family Asteraceae. Pricklyleaf is a common name for plants in this genus.
Hedeoma is a genus of flowering plants in the mint family, Lamiaceae. It is native to North and South America. They are commonly known as false pennyroyals.
Ratibida columnifera, commonly known as upright prairie coneflower, Mexican hat, rocketflower, and longhead prairie coneflower, is a perennial species of flowering plant in the genus Ratibida in the family Asteraceae. It is native to much of North America and inhabits prairies, plains, roadsides, and disturbed areas from southern Canada through most of the United States to northern Mexico.
Berlandiera is a genus of flowering plants in the family Asteraceae.
Psilostrophe, the paperflowers is a genus of North American plants in the sneezeweed tribe within the sunflower family.
Polanisia is a genus of flowering plants in the family Cleomaceae. Members of the genus are commonly known as clammyweeds. Polanisia jamesii is listed as locally endangered in Minnesota, while P. dodecandra is widespread through much of North America.
Hilaria is a genus of North American plants in the grass family. Members of the genus are commonly known as curly mesquite. They are found in the Southwestern United States, Mexico, and Guatemala.
Flourensia is a genus of flowering plants in the family Asteraceae. It contains subshrubs and shrubs, which are commonly known as tarworts. They are found in the southwestern United States, Mexico, Central America, and South America. The genus name honours French physiologist Jean Pierre Flourens (1794–1867).
Simsia is a genus of flowering plants in the tribe Heliantheae within the family Asteraceae. It includes annuals, herbaceous perennials, and shrubs. They range from the western United States south through Central and South America to Argentina, with the center of diversity occurring in Mexico. The genus is named for British physician and botanist John Sims (1749–1831). Although some species are relatively rare, others have become common weeds that line the roadsides and fields of Mexico, often forming dense stands mixed with Tithonia and other Asteraceae. Some species are known by the common name bushsunflower.
Tridens is a genus of perennial grasses in the family Poaceae native to the Americas.
Phemeranthus (fameflower) is a genus of flowering plants in the miner's lettuce family, Montiaceae, native to the Americas. It is sometimes placed in Portulacaceae. The name is derived from the Greek words εφήμερος (ephemeros), meaning "living for one day," and ἄνθος (anthos), meaning "flower." Common names for the various species are often fame flower, rock rose, rock pink, and sand pink.
Amoreuxia is a genus of flowering plants in the achiote family, Bixaceae. It was formerly placed in the family Cochlospermaceae. Members of the genus are commonly known as yellowshow. They are native to Mexico, Central America, Colombia, Peru, Curaçao, and the southwestern United States.
- Amoreuxia gonzaleziiSprague & L.Riley – Santa Rita Mountain yellowshow - Sonora, Sinaloa, Jalisco, southern Arizona
- Amoreuxia malvifoliaA.Gray - Chihuahua, Durango
- Amoreuxia palmatifidaMoc. & Sessé ex DC. – Mexican yellowshow - Mexico, Central America, Colombia, Arizona, New Mexico
- Amoreuxia wrightiiA.Gray – Wright's yellowshow - Curaçao, Peru, Chihuahua, Durango, Coahuila, Nuevo León, San Luis Potosí, Tamaulipas, Campeche, Yucatán, Quintana Roo, Campeche, Texas
Poliomintha is a genus of flowering plants in the mint family, Lamiaceae. It is native to the southwestern United States, Haiti, and northern Mexico.
