Narthecium americanum is a species of flowering plant in the Nartheciaceae known by the common names yellow asphodel and bog asphodel. It is native to New Jersey in the United States. It is now apparently limited to that state, having likely been extirpated from Delaware, North Carolina, and South Carolina.
Pseudobahia bahiifolia is a rare species of flowering plant in the family Asteraceae known by the common name Hartweg's golden sunburst.
Suaeda californica is a rare species of flowering plant in the amaranth family known by the common name California seablite. It is now endemic to San Luis Obispo County, California, where it is known from a few occurrences in the marshes around Morro Bay, historical populations around San Francisco Bay have been extirpated.
Liatris helleri is a species of flowering plants in the family Asteraceae known by the common names Heller's blazing star and Heller's gayfeather. It is native to the Appalachian Mountains of the southeastern United States, found in the states of North Carolina, Virginia, West Virginia, and Maryland. It is threatened by recreational activities in its habitat, and is federally listed as a threatened species.
Liatris ohlingerae is a rare species of flowering plant in the family Asteraceae known by the common names Florida blazing star, Florida gayfeather, scrub blazing star, and sandtorch. It is endemic to Florida in the United States, where it occurs only on the Lake Wales Ridge along with many other rare plants. It is threatened by the loss and degradation of its habitat, and it is federally listed as an endangered species.
Tiedemannia canbyi is a rare species of flowering plant in the carrot family known as Canby's dropwort and Canby's cowbane. It is native to the southeastern United States, where it occurs on the Atlantic coastal plain from North Carolina to Georgia, as well as the Chesapeake Bay area. It is threatened by the loss of the wetland habitat in which it grows. It is a federally listed endangered species of the United States.
Polygonum basiramia is a rare species of flowering plant in the knotweed family known by the common names wireweed, hairy wireweed, purple wireweed, and Florida jointweed. It is endemic to Florida in the United States, where it is limited to the central ridges of the peninsula, including the Lake Wales Ridge. It is threatened by the loss and degradation of its habitat. It is a federally listed endangered species of the United States.
Sisyrinchium dichotomum is a rare species of flowering plant in the iris family known by the common names wishbone blue-eyed grass, white irisette, and reflexed blue-eyed grass. It is native to North Carolina and South Carolina in the United States, where fewer than ten populations remain in four counties. It is threatened by the loss and degradation of its habitat and is a federally listed endangered species of the United States.
Solidago houghtonii is a rare North American species of flowering plant in the family Asteraceae known as Houghton's goldenrod. It is native to southern Ontario, Canada and the northern United States. It is threatened by the loss and degradation of its habitat. It is a federally listed threatened species of the United States and it is designated a species of special concern by Canada's Committee on the Status of Endangered Wildlife in Canada.
Veratrum hybridum is a species of flowering plant in the Melanthiaceae known by the common names slender bunchflower and crisped bunchflower. Many publications use the synonyms Melanthium latifolium and Veratrum latifolium, but the "hybridum" epithet is 9 years older than the "latifolium," so Veratrum hybridum is now the accepted name.
Coreopsis latifolia is a North American species of flowering plant in the aster family known by the common name broad-leaved tickseed. It is native to the southeastern United States, primarily in the southern Appalachians of the states of Georgia, North Carolina, South Carolina, and Tennessee.
Eriocaulon parkeri is a species of flowering plant in the pipewort family known by the common names Parker's pipewort and estuary pipewort. It is native to eastern North America, where its distribution spans the coast from Quebec to North Carolina. It is extirpated from New York and Pennsylvania, however.
Kalmia cuneata is a species of flowering plant in the heath family known by the common name whitewicky, sometimes spelled white-wicky or white wicky. It is native to the eastern United States, where it occurs only in North Carolina and South Carolina.
Liatris provincialis is a species of flowering plant in the family Asteraceae known by the common names Godfrey's blazing star and Godfrey's gayflower. It is endemic to Florida in the United States, where it is limited to Wakulla and Franklin Counties in the Panhandle.
Muhlenbergia torreyana is a species of grass known by the common names New Jersey muhly, Torrey's muhly, and Torrey's dropseed. It is native to the eastern United States, where today it occurs in Maryland, New Jersey, North Carolina, and Tennessee. It has been extirpated from Delaware, Georgia, and New York.
Parnassia caroliniana is a species of flowering plant in the Celastraceae known by the common name Carolina grass of Parnassus. It is native to the southeastern United States, where it occurs in North Carolina and South Carolina, with an isolated population in the Florida Panhandle.
Silene regia is a species of flowering plant in the family Caryophyllaceae known by the common name royal catchfly. It is native to the central United States. A perennial herb, it grows from a fleshy taproot and has several erect stems growing up to 1.6 meters tall. The leaves are lance-shaped to oval and up to 12 centimeters (4.7 in) long, becoming smaller farther up the stem. The inflorescence is an array of many flowers at the top of the stem. The elongate tubular calyx of sepals is up to 2.5 centimeters (0.98 in) long and has 10 longitudinal veins. The lobes of the bright red corolla are 1 to 2 centimeters long.
Rhexia mariana is a species of flowering plant in the Melastomataceae family known by the common names pale meadow beauty or Maryland meadowbeauty. It is native to the eastern and lower midwestern United States.
Aquilegia brevistyla is a species of flowering plant in the buttercup family known by the common name smallflower columbine. It is native to northern North America, where it has a disjunct distribution. Most of its range extends from Alaska through much of Canada, and it also occurs in a few areas in the contiguous United States, such as the Black Hills of South Dakota and central Montana. It is most common in eastern Alaska, Yukon, the southern Northwest Territories, and northern parts of Alberta, Manitoba, and Saskatchewan.
Delphinium exaltatum, known by the common name tall larkspur, is a species of flowering plant in the genus Delphinium, part of the buttercup family. Other Delphinium species are also commonly known as tall larkspur, such as Delphinium barbeyi. D. exaltatum is native to the central and eastern United States, where it can be found in Kentucky, Maine, Ohio, Pennsylvania, Maryland, West Virginia, Virginia, North Carolina, Alabama, Tennessee, and Missouri.
