Cirsium parryi, or Parry's thistle, is a species of North American flowering plants in the family Asteraceae. It is native to the southwestern United States, where it has been found in Colorado, Arizona, and New Mexico.
Cirsium eatonii, commonly known as Eaton's thistle or mountaintop thistle, is a North American species of flowering plants in the family Asteraceae.
Cirsium altissimum is a North American species of plants in the tribe Cardueae within the family Asteraceae. Common name is tall thistle or roadside thistle. The species is native to the eastern and Central United States, with a range extending from Massachusetts west to North Dakota and south to Texas and the Florida Panhandle.
Cirsium clavatum, the Fish Lake thistle or fringed thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the western United States, the States of Wyoming, Colorado, Utah, Arizona, and New Mexico.
Cirsium drummondii, called Drummond's thistle, dwarf thistle or short-stemmed thistle, is a North American species of plant in the tribe Cardueae within the family Asteraceae. The species is native to central and western Canada, in every province from Ontario to British Columbia, plus the Northwest Territories. In the United States, it has been found only in the Black Hills of Wyoming and South Dakota.
Cirsium foliosum , also called leafy thistle, foliose thistle, elk thistle, or Evert's thistle, is a North American plant species in the tribe Cardueae within the family Asteraceae. The species is native to Alaska, Yukon, Northwest Territories, Alberta, British Columbia, and Wyoming.
Cirsium grahamii, called Graham's thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to Sonora, Chihuahua, Durango, Nuevo León, New Mexico, and Arizona.
Cirsium helenioides, the melancholy thistle, is an Asian and Arctic species of plants in the tribe Cardueae within the family Asteraceae. The species is native to Greenland, Iceland, Norway, Sweden, Finland, Russia, Xinjiang, Kazakhstan.
Cirsium longistylum, the long-style thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is found only in the central part of the State of Montana in the United States, in the portions of the Rocky Mountains called the Big Belt, Castle, Elkhorn, and Little Belt ranges.
Cirsium nuttallii, called Nuttall's thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the coastal plain of the southeastern and south-central United States, from eastern Texas to southeastern Virginia.
Cirsium pulcherrimum, the Wyoming thistle , is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the western United States, primarily in the state of Wyoming but also in surrounding areas.
Cirsium pumilum, the pasture thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. The species is native to the northeastern and north-central United States as well as to the Canadian Province of Ontario.
Cirsium repandum is a North American species of plants in the tribe Cardueae within the family Asteraceae. Common names include sand-hill thistle and coastal-plain thistle. The species is native to the south-eastern United States, the coastal plain in Virginia, Georgia, and the Carolinas.
Cirsium texanum is a species of plants in the tribe Cardueae within the family Asteraceae found in North America. Common names include Texas thistle, Texas purple thistle or southern thistle. The species is native to northern Mexico and the southern Great Plains of the south-central United States.
Cirsium turneri is a North American species of plants in the tribe Cardueae within the family Asteraceae. Common names include cliff thistle. The species grows in crevices in limestone cliffs in northern Mexico and western Texas.
Erigeron consimilis is a North American species of flowering plants in the family Asteraceae known by the common names foothill fleabane and San Rafael fleabane. It is found in the western United States: Arizona, New Mexico, Utah, Colorado, Wyoming.
Erigeron grandiflorus is a North American species of flowering plant in the family Asteraceae known by the common names Rocky Mountain alpine fleabane and largeflower fleabane.
Erigeron trifidus is a Canadian species of flowering plant in the family Asteraceae known by the common name Alberta fleabane. It is native to the provinces of Alberta and British Columbia in western Canada.
Eucephalus paucicapitatus is a North American species of flowering plant in the family Asteraceae known by the common name Olympic Mountain aster. It grows on rocky slopes and in subalpine meadows at high elevations in and near Olympic National Park in the US State of Washington, and on Vancouver Island in the Canadian Province of British Columbia.
Tagetes micrantha is a North American species of wild marigold within the family Asteraceae, common name licorice marigold. It is widespread across much of Mexico from Chihuahua to Oaxaca, and found also in the southwestern United States.
