Thomas Nuttall was an English botanist and zoologist who lived and worked in America from 1808 until 1841.
Cercocarpus ledifolius is a North American species of mountain mahogany known by the common name curl-leaf mountain mahogany. It is widespread across much of the Western United States as well as Baja California in Mexico. It can be found at elevations ranging from 600 to 3,000 m elevation, with the preferred altitude varying depending on the region. It prefers shallow, well-drained soils with a sandy or grainy consistency, and is generally found in areas which receive low annual precipitation (15–26 cm). This makes it common on low mountains and slopes, where it grows in scattered groves among other drought-resistant species such as Pinyon Pines, Junipers and Sagebrush ecosystems.
Rafinesquia, commonly known as plumeseed, is a genus of flowering plants in the dandelion family, native to the western United States and northwestern Mexico.
Wyethia is a genus of North American flowering plants in the family Asteraceae.
Ericameria nana is a North American species of flowering shrub in the daisy family known by the common names dwarf goldenbush and rubberweed. It is native to the western United States from eastern California, southeastern Oregon, Nevada, Idaho, Utah, and southwestern Montana.
Erigeron foliosus, known by the common names leafy daisy and leafy fleabane, is a North American species of flowering plants in the family Asteraceae.
Heliomeris is a genus of flowering plants in the family Asteraceae known generally as false goldeneyes.
Brickellia grandiflora, known by the common name tasselflower brickellbush, is a species of flowering plant in the family Asteraceae.
Crepis occidentalis is a North American species of flowering plant in the daisy family known by the common names western hawksbeard, or largeflower hawksbeard. It is native to western Canada and the western United States.
Astranthium, or Western-daisy, is a North American genus of flowering plants in the family Asteraceae. Astranthium is native to the United States and Mexico.
Chrysoma is a genus of flowering plants in the family Asteraceae.
Euphrosyne is a genus of flowering plants in the sunflower family.
Erigeron pumilus, the shaggy fleabane, or vernal daisy, is a hairy North American species of perennial plants in the family Asteraceae. It is widespread across much of western Canada and the western United States, from British Columbia east to Saskatchewan and south as far as Oklahoma and the San Bernardino Mountains of California. There have been reports of the plant growing in Yukon Territory, but these were based on misidentified specimens.
Chrysothamnus depressus called long-flowered rabbitbrush, is a North American species of flowering plants in the tribe Astereae within the family Asteraceae. It is native to the southwestern United States, the States of California, Arizona, New Mexico, Nevada, Utah, and Colorado. It grows in dry canyons, rocky crevices and similar habitats in the Mohave Desert, the Colorado Plateau, etc.
Erigeron caespitosus is a North American species of flowering plants in the family Asteraceae known by the common name tufted fleabane. It is native to western Canada and the United States
Erigeron filifolius is a North American species of flowering plants in the family Asteraceae known by the common names thread-leaf fleabane.
Erigeron nivalis is a North American species of flowering plant in the family Asteraceae, called the northern daisy. It is widespread across much of western North America from Alaska east to Northwest Territories and south as far as California and New Mexico.
Erigeron ochroleucus is a North American species of flowering plant in the family Asteraceae, called the buff fleabane or buff daisy. It is native to western Canada and the western United States from Alaska and Yukon southeast as far as Colorado and Nebraska.
Heliomeris multiflora is a North American species of flowering plants in the family Asteraceae called the showy goldeneye. It grows in Mexico and the western United States from Montana to Jalisco.
Krigia occidentalis, known as western dwarfdandelion, is a North American species of plants in the sunflower family. It is native to the southern Great Plains and the Ozark Mountains of the south-central United States.
