The Pieridae are a large family of butterflies with about 76 genera containing about 1,100 species, mostly from tropical Africa and tropical Asia with some varieties in the more northern regions of North America and Eurasia. Most pierid butterflies are white, yellow, or orange in coloration, often with black spots. The pigments that give the distinct coloring to these butterflies are derived from waste products in the body and are a characteristic of this family. The family was created by William John Swainson in 1820.
Arnica is a genus of perennial, herbaceous plants in the sunflower family (Asteraceae). The genus name Arnica may be derived from the Greek arni, "lamb", in reference to the plants' soft, hairy leaves. Arnica is also known by the names mountain tobacco and, confusingly, leopard's bane and wolfsbane—two names that it shares with the entirely unrelated genus Aconitum.
Colias is a genus of butterflies in the family Pieridae. They are often called clouded yellows in the Palearctic and sulphurs in North America. The closest living relative is the genus Zerene, which is sometimes included in Colias.
Parnassius clodius is a white butterfly which is found in the United States and Canada. It is a member of the snow Apollo genus (Parnassius) of the swallowtail family (Papilionidae). Its elevation range is 0–7,000 ft (0–2,134 m).
Astragalus canadensis is a common and widespread member of the milkvetch genus in the legume family, known commonly as Canadian milkvetch. The plant is found throughout Canada and the United States in many habitats including wetlands, woodlands, and prairies.
Colias palaeno, known by the common names moorland clouded yellow, palaeno sulphur, and pale Arctic clouded yellow, is a butterfly in the family Pieridae.
Colias philodice, the common sulphur or clouded sulphur, is a North American butterfly in the family Pieridae, subfamily Coliadinae.
Colias erate, commonly known as the eastern pale clouded yellow, is a species of butterfly in the family Pieridae. It is found from south-eastern Europe, through Turkey over central Asia up to Japan and Taiwan. To the south, its range stretches to Somalia and Ethiopia. The species was first described by Eugenius Johann Christoph Esper in 1805.
Colias nastes, the Labrador sulphur, is a butterfly in the family Pieridae. In Europe, it is found in the north of Norway and Sweden and on rare occasions in northern Finland. It is also found in North America, specifically in Alaska, Canada, and the Rocky Mountains, Washington, Montana and on Greenland. In Asia, it is found in the Altai Mountains, the border regions of Russia, China, Mongolia, Kazakhstan, the Sayan Mountains, the north of Siberia, and in the Chukotka Autonomous Okrug.
Colias tyche, the Booth's sulphur or pale Arctic clouded yellow, is a butterfly in the family Pieridae. It is found from Baffin Island west along the Hudson Bay and arctic coasts of the Nunavut and Northwest Territories mainland and the southern tier of Arctic Islands to northern Yukon, Alaska, and Eurasia.
Callophrys sheridanii, the Sheridan's hairstreak and Sheridan's green hairstreak, is a butterfly in the family Lycaenidae. It is found in North America along the south coast of British Columbia and parts of Nevada, Arizona, Saskatchewan, North Dakota, and New Mexico. In 2009, this species was adopted as the U.S. state butterfly for Wyoming.
Colias occidentalis, the western sulphur or golden sulphur, is a butterfly in the family Pieridae found in North America. Its range includes the Pacific Northwest and parts of British Columbia.
Colias alexandra, the Queen Alexandra's sulphur, Alexandra sulphur, or ultraviolet sulfur, is a butterfly in the family Pieridae found in western North America. Its range includes Alaska to the Northwest Territories and south to Arizona and New Mexico.
Colias meadii, the Mead's sulphur, is a butterfly in the family Pieridae found in North America. Its range includes the Rocky Mountains in Canada and the United States.
Colias canadensis, the Canada sulphur, is a butterfly in the family Pieridae found in North America. It has only been found from Alaska and Northwest Territories, to northern British Columbia and Alberta.
Colias gigantea, the giant sulphur or giant northern sulfur, is a butterfly in the family Pieridae found in North America. Its range includes Alaska across Canada to the east coast and Wyoming, Montana, and Oregon.
Colias chippewa, the heath sulphur, is a butterfly in the family Pieridae found in North America and northeastern Asia. Its range includes Alaska across northern Canada, including all the territories, and as far east as Labrador. and the Russian Far East.
Colias pelidne, the pelidne sulphur or blueberry sulphur, is a butterfly in the family Pieridae found in North America. Its range includes British Columbia across Canada as far east as Newfoundland and south to Idaho, Montana, and Wyoming.
Erigeron glabellus is a North American species of flowering plants in the family Asteraceae, called the streamside fleabane.
Oeneis bore, the white-veined Arctic or Arctic grayling, is a butterfly, a species of Satyrinae that occurs in North America and Asia.
