Oenothera is a genus of about 145 species of herbaceous flowering plants native to the Americas. It is the type genus of the family Onagraceae. Common names include evening primrose, suncups, and sundrops. They are not closely related to the true primroses.
Pawnee National Grassland is a United States National Grassland located in northeastern Colorado on the Colorado Eastern Plains. The grassland is located in the South Platte River basin in remote northern and extreme northeastern Weld County between Greeley and Sterling. It comprises two parcels totaling 193,060 acres (78,130 ha) largely between State Highway 14 and the Wyoming border. The larger eastern parcel lies adjacent to the borders of both Nebraska and Wyoming. It is administered in conjunction with the Arapaho-Roosevelt National Forest from the U.S. Forest Service office in Fort Collins, with a local ranger district office in Greeley.
Oenothera biennis, the common evening-primrose, is a species of flowering plant in the family Onagraceae, native to eastern and central North America, from Newfoundland west to Alberta, southeast to Florida, and southwest to Texas, and widely naturalized elsewhere in temperate and subtropical regions. Evening primrose oil is produced from the plant.
Oenothera lindheimeri, commonly known as Lindheimer's beeblossom, white gaura, pink gaura, Lindheimer's clockweed, and Indian feather, is a species of Oenothera. Several of its common names derive from the genus Gaura, in which this species was formerly placed.
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.
Oenothera elata is a species of Oenothera known by the common name Hooker's evening primrose or tall evening primrose. Subspecies include hookeri, hirsutissima, longisima, jamesii, villosa and elata. It is native to much of western and central North America. The plants are quite tall, especially the hookeri subspecies, native to California, which can reach about 1.8 meters height. The plants are found along roadsides, in moist meadows, or in woodland, from sea level up to 9,000 ft (2,700 m) in elevation.
Oenothera suffrutescens is a species of flowering plant in the evening primrose family known as scarlet beeblossom and scarlet gaura.
Oenothera xenogaura, is a species of flowering plant in the evening primrose family known by the common names Drummond's beeblossom and scented gaura. It is native to Mexico and its range extends into Texas. It can be found in parts of the southern and southwestern United States where it is an introduced species and is a minor weed in some areas. This is a mat-forming perennial herb growing from rhizomes. Stems reach 10 or 12 centimeters in height can be plentiful and tightly clumped. Leaves are about one to nine centimeters long and linear to slightly oval-shaped. The stems and foliage are covered in hairs. The plant produces small spike inflorescences with centimeter-long sepals and smaller spoon-shaped petals which are white, fading to pink. The fruit is an erect, woody capsule about a centimeter long with a base shaped like a stalk with a bulge at the center.
Gaura sinuata is a species of flowering plant in the evening primrose family known by the common names wavyleaf beeblossom and Red River gaura. In 2007 the species, along with the genus Gaura was reclassified in the genus Oenothera. This species then becomes O. sinuosa in Oenothera Section Gaura.
Oenothera californica, known by the common name California evening primrose, is a species of flowering plant in the evening primrose family.
Oenothera primiveris is a species of flowering plant in the evening primrose family known by the common names yellow desert evening primrose, bottle evening-primrose, and desert evening-primrose.
Oenothera wolfii is a rare species of flowering plant in the evening primrose family known by the common name Wolf's evening primrose. It is native to the coastline of southern Oregon and northern California, where it grows in coastal prairie, dunes, and coastal forest and woodland habitat. As of 1997 it was known from only about 16 occurrences. The biggest threat to the plant is its easy hybridization with its relative and probable descendant, Oenothera glazioviana. As this rare wild plant crosses with the introduced garden escapee, introgression occurs, causing what is known as genetic pollution; fewer pure individuals of O. wolfii will be seen as they are outnumbered by hybrids.
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.
Eriogonum brandegeei is a species of flowering plant in the buckwheat family known by the common name Brandegee's buckwheat. It is endemic to Colorado in the United States, where it occurs in Fremont and Chaffee Counties.
Oenothera gaura, formerly known as Gaura biennis, the biennial gaura or biennial beeblossom, is a North American flowering plant that can reach 6 ft (1.8 m) in height at maturity. Its upper half is made up of flowering stems, which are covered with soft, white hairs. It has light pink colored flowers, which turn a vibrant red/pink color in the late summer to early fall seasons. These colors make this plant attractive to butterflies and bees, and are in full bloom just before many fall plant species begin to bloom.
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.
Oenothera clelandii, the lesser four-point evening-primrose, is a species of flowering plant in the family Onagraceae. It is native to Ontario, Canada, and the east-central United States. A perennial or biennial reaching 40 in (1 m), it prefers to grow in sandy soils in prairies and fields.
