Epilobium is a genus of flowering plants in the family Onagraceae, containing about 197 species. The genus has a worldwide distribution. It is most prevalent in the subarctic, temperate and subantarctic regions, whereas in the subtropics and tropics Epilobium species are restricted to the cool montane biomes, such as the New Guinea Highlands.
Camissonia, sometimes commonly known as sun cup or sundrop, is a genus of annual and perennial plants in the evening primrose family Onagraceae. A total of 12 species are known, nearly all from western North America, especially in the California Floristic Province, but also one from South America. Previous circumscriptions of the genus had recognized up to 62 species before it was split among other closely related genera.
Gaura was a genus of flowering plants in the family Onagraceae, native to North America. The name was derived from Greek γαῦρος (gaûros) meaning "superb" and named in reference to the stature and floral display of some species in this genus. The genus included many species known commonly as beeblossoms. Genetic research showed that the genus was paraphyletic unless the monotypic genus Stenosiphon is included within Gaura, increasing the number of species in the genus to 22. Gaura is now a synonym of Oenothera, with the bulk of the Gaura taxa in genus Oenotherasect. Gaura(L.) W.L.Wagner &Hoch.
Lipochaeta, common name nehe, is a genus of flowering plants in the family Asteraceae that is endemic to Hawaii.
Melanthera, is a genus of perennial flowering plants in the family Asteraceae, native to North and South America, as well as Africa, Asia and Oceania, including Hawaiʻi.
Oenothera macrocarpa, the bigfruit evening primrose, Ozark sundrops, Missouri evening primrose, or Missouri primrose, is a species of flowering plant in the evening primrose family Onagraceae, native to northeast Mexico and the south-central United States, where it is found in calcareous prairies and limestone outcrops.
Camissoniopsis is a plant genus in the evening primrose family (Onagraceae).
Chylismia is a plant genus in the evening primrose family Onagraceae.
Oenothera suffulta, known as roadside gaura, honeysuckle gaura, or kisses, is a flowering plant in the primrose family, Onagraceae. It is endemic to the United States, in Texas and southern Oklahoma.
Eremogone is a genus of flowering plants in the family Caryophyllaceae, native to western North America, northern Asia, eastern Europe and northeastern Africa. Attempts to resolve taxonomic relationships within the Caryophyllaceae have resulted in the enlargement of Eremogone with species from other genera.
Tetrapteron is a genus of flowering plants belonging to the family Onagraceae.
Neoholmgrenia is a genus of flowering plants belonging to the family Onagraceae.
Eremothera is a genus of flowering plants in the family Onagraceae containing 7-12 species, native to Western North America.
Taraxia is a small genus of flowering plants in the family Onagraceae, native to western Canada and the western and west-central United States. Nuclear DNA evidence shows that it is sister to a clade containing all genera in the tribe Onagreae except for Oenothera, Eulobus, and Chylismia.
Oenothera cinerea, the woolly beeblossom or High Plains beeblossom, is a species of flowering plant in the family Onagraceae. It is native to the US states of Colorado, New Mexico, Kansas, Oklahoma, and Texas, and it has been introduced to New Jersey. A perennial subshrub capable of reaching 2.4 m (8 ft), its flowers start out white and fade to pink.
Oenothera filiformis, the longflower beeblossom, is a species of flowering plant in the family Onagraceae. It is native to the central United States. An annual, biennial, or perennial, it can reach 12 ft (3.7 m) tall. It has simple leaves that are alternate in arrangement. Flowers have four petals that are white or pink to red in color.
Oenothera glaucifolia, the false gaura, is a species of flowering plant in the family Onagraceae. It is native to the west-central United States, and to Coahuila in Mexico. A probable biennial, it can reach 3 m (10 ft).
Oenothera simulans, the southern beeblossom, is a species of flowering plant in the family Onagraceae. It is native to the Bahamas and the southeastern United States. An annual reaching 6 ft (1.8 m), it prefers sandy soils and is found growing in dunes, open woodlands, fields, and roadsides.
Oenothera hartwegii, Hartweg's sundrops, is a species of flowering plant in the evening primrose family Onagraceae. It is native to the desert southwest of the United States, and to northern and western Mexico. A perennial usually 30 to 45 cm tall and 60 cm (24 in) wide, it is used locally as a drought-resistant ground cover.
