Silphium is a genus of North American plants in the tribe Heliantheae within the family Asteraceae.
Silphium laciniatum is a species of flowering plant in the family Asteraceae known commonly as compassplant or compass plant. It is native to North America, where it occurs in Ontario in Canada and the eastern and central United States as far west as New Mexico. Other common names include prairie compass plant, pilotweed, polarplant, gum weed, cut-leaf silphium, and turpentine plant. It is a rosinweed of genus Silphium.
Calopogon oklahomensis, commonly known as the Oklahoma grass pink or prairie grass pink, is a terrestrial species of orchid native to the United States. It is restricted to the states of Alabama, Arkansas, Georgia, Illinois, Indiana, Iowa, Kansas, Louisiana, Minnesota, Mississippi, Missouri, Oklahoma, South Carolina, Tennessee, Texas, and Wisconsin. It is extirpated throughout most of its range. Calopogon oklahomensis is a perennial herb with flowers that are white, pink or purple, with a labellum with an apical region of yellow hairs. Flowers bloom March to July. Its habitats include coastal prairies, savannas, edges of bogs, and oak woodlands. It was described by Douglas H. Goldman in 1995.
Pilosella albiflora is a common and widespread North American plant in the family Asteraceae, known by the names white hawkweed and white-flowered hawkweed.
Eurybia hemispherica, commonly known as the southern prairie aster, is an herbaceous plant in the composite family (Asteraceae). It is native to the south-central United States, primarily the lower Mississippi Valley and southeastern Great Plains, from Kansas south to Texas and east to Kentucky, Tennessee, and the Florida Panhandle. Its natural habitat is typically in upland prairies or dry savannas. It is less commonly found in open moist areas, in sandy-loamy soil.
Cirsium discolor, the field thistle, is a North American species of plants in the tribe Cardueae within the family Asteraceae. It is native to thirty-three states in the United States as well four Canadian provinces. It occurs across much of eastern and central Canada as well as eastern and central United States. It has been found from New Brunswick west to Saskatchewan and south as far as Texas and Georgia.
Silphium asteriscus, commonly called starry rosinweed, is an herbaceous plant in the family Asteraceae. It is native to the eastern United States, from Oklahoma and Texas east to Florida and Pennsylvania. It is a widespread species found in a variety of open habitats, such as prairies and woodlands.
Silphium integrifolium is a species of flowering plant in the family Asteraceae. Its common names include rosinweed, whole-leaf rosinweed, entire-leaf rosinweed, prairie rosinweed, and silflower. It is native to eastern North America, including Ontario in Canada and the eastern and central United States as far west as New Mexico.
Silphium pinnatifidum, the tansy rosinweed or cutleaf prairie dock, is a species of flowering plant in the family Asteraceae. It is native to the Southeastern United States where it is found in Alabama, Georgia, Kentucky, and Tennessee. Its habitat is prairies, barrens, and cedar glades.
Linum pratense, commonly called meadow flax, is a species of flowering plant in the flax family (Linaceae). It is native to the United States, where it is found in the south-central and southwestern regions of the country. Its natural habitat is in dry, open prairies over calcareous or sandy soil. It can be found in both intact and disturbed communities.
Silphium mohrii, known by the common names Mohr's rosinweed and shaggy rosinweed, is a species of flowering plant in the family Asteraceae. It is native to the Southeastern United States, where it is native only to northern Alabama, southern Tennessee, and extreme northwest Georgia. It is native to prairie remnants and rocky limestone openings. Because of its restricted range and severely declined habitat, it is considered a vulnerable species.
Silphium terebinthinaceum is a member of the Asteraceae, a family that includes sunflowers, commonly referred to as prairie dock or prairie rosinweed. "Rosinweed" became one of the plant's common names due to the fact that upon injury, resin flows from the wound, giving the plant a sweet smell. Tea brewed from the roots of the prairie dock have a variety of medical applications in Native American culture. The smoke from this plant has also been used as a treatment for congestion and rheumatism.
Palafoxia callosa, commonly known as the small palafox, is a species of flowering plant in the aster family.
Silphium trifoliatum, commonly known as whorled rosinweed, is a species of flowering plant in the family Asteraceae. It is native to the eastern United States, where it is found east of the Mississippi River. Its natural habitat is open, grassy areas such as prairies, river cobble bars, and roadsides. It is a tall perennial that produces heads of yellow flowers in mid-summer through fall.
Glandularia bipinnatifida, commonly called Dakota mock vervain, prairie verbena, and Moradilla, among others, is a species of flowering plant in the verbena family (Verbenaceae).
Polygala alba, commonly called white milkwort, is a species of flowering plant in the milkwort family (Polygalaceae).
Dalea multiflora, commonly called roundhead prairie clover, is a species of flowering plant in the legume family (Fabaceae). It is native to North America, where it is found in Mexico and the United States. In the U.S., it is primarily found in the Great Plains and South Central regions. Its natural habitat is in dry rocky prairies, particularly in limestone soils. It is a conservative species and can be indicative of undisturbed prairie communities.
Euphorbia missurica, commonly called prairie sandmat, or Missouri spurge, is a species of flowering plant in the spurge family (Euphorbiaceae). It is native to North America, where it is found primarily in area of the Great Plains. Its natural habitat is in dry, often calcareous areas, including glades, bluffs, and open woodlands.
Silphium radula, commonly known as roughstem rosinweed, is a species of flowering plant in the family Asteraceae. It is native North America, where it is found in the South Central region of the United States. Its natural habitat is prairies over sandy or calcareous soil.
Silphium wasiotense, commonly called Appalachian rosinweed, is a species of flowering plant in the family Asteraceae. It is native eastern to North America, where it is endemic to the Cumberland Plateau of Kentucky and Tennessee. Its natural habitat is in dry open woodlands. It is considered rare throughout its range.
