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.
Thelesperma filifolium, commonly known as stiff greenthread, or plains greenthread, is a species of flowering plant in the aster family, Asteraceae. It is often found growing in shallow soils. It prefers disturbed sites in dry, sandy or gravelly soil with a neutral to basic pH. Stiff greenthread adapts to various soil conditions, including loam, clay, caliche, and roadsides. It blooms between March and June and often into the fall.
Artemisia douglasiana, known as California mugwort, Douglas's sagewort, or dream plant, is a western North American species of aromatic herb in the sunflower family.
Echinacea simulata, commonly called wavy leaf purple coneflower, glade coneflower, or prairie purple coneflower, is a species of perennial flowering plant in the family Asteraceae. It is native to the east-central states of the United States. Its natural habitat is dry, calcareous, open areas such as barrens and woodlands.
Phlox pilosa, the downy phlox or prairie phlox, is an herbaceous plant in the family Polemoniaceae. It is native to eastern North America, where it is found in open areas such as prairies and woodlands.
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.
Helianthus grosseserratus, commonly known as sawtooth sunflower or thick-tooth sunflower, is a perennial sunflower in the family Asteraceae, with a large flowering head (inflorescence).
Silphium perfoliatum, the cup plant or cup-plant, is a species of flowering plant in the family Asteraceae, native to eastern and central North America. It is an erect herbaceous perennial with triangular toothed leaves, and daisy-like yellow composite flower heads in summer.
Liatris punctata is a species of flowering plant in the family Asteraceae known by the common names dotted gayfeather, dotted blazingstar, and narrow-leaved blazingstar. It is native to North America, where it occurs throughout the plains of central Canada, the central United States, and northern Mexico.
Helianthus petiolaris is a North American plant species in the family Asteraceae, commonly known as the prairie sunflower or lesser sunflower. Naturalist and botanist Thomas Nuttall was the first to describe the prairie sunflower in 1821. The word petiolaris in Latin means, “having a petiole”. The species originated in Western United States, but has since expanded east. The prairie sunflower is sometimes considered a weed.
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.
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 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.
Silphium albiflorum, commonly known as white rosinweed, is a species of flowering plant in the family Asteraceae. It is native to the United States, where it is endemic to the state of Texas. Its natural habitat is in open, calcareous prairies.
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.
Silphium brachiatum is a species of flowering plant in the family Asteraceae known commonly as Cumberland rosinweed. It is a rare member of the genus Silphium and is native to the southern Cumberland Plateau where it is found in only a few counties of Alabama, Georgia, and Tennessee. It was described by Augustin Gattinger, the first state botanist of Tennessee.
Silphium perplexumJ.R.Allison is a prairie species in the Asteraceae endemic to the state of Alabama. S. perplexum is commonly known as Old Cahaba rosinweed, a reference to the Cahaba River near which all populations of this species are found.
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.
