Eriogonum is the scientific name for a genus of flowering plants in the family Polygonaceae. The genus is found in North America and is known as wild buckwheat. This is a highly species-rich genus, and indications are that active speciation is continuing. It includes some common wildflowers such as the California buckwheat.
The common name umbrella plant can refer to several unrelated species:
A calcareous glade is a type of ecological community that is found in the central eastern United States. Calcareous glades occur where bedrock such as limestone occurs near or at the surface, and have very shallow and little soil development. Because of the shallow soil and the extreme conditions created by it, trees are often unable to grow in the glades. This creates a habitat that is usually sunny, dry, and hot. Calcareous glade vegetation is more similar to that of a desert habitat than a grassland, being dominated by small spring annuals with occasional geophytic or succulent perennials.
Echinacea tennesseensis, also known as the Tennessee coneflower or Tennessee purple coneflower, is a flowering plant in the sunflower family, endemic to the cedar glades of the central portion of the U.S. state of Tennessee.
Eriogonum parvifolium is a species in the family Polygonaceae that occurs on dune formations in the coastal area of Central and Southern California. This evergreen shrub grows to a height of 30 to 100 centimeters with a spread of approximately the same dimension. This plant is an important host for a number of pollinating insects including certain endangered species. E. parvifolium occurs both on bluffs along the Pacific Ocean coast as well as Coastal Strand dunes formations, but is restricted to altitudes below 700 meters. In at least one instance within the Carbonera Creek watershed, it occurs farther inland in a Maritime Coast Range Ponderosa Pine forest. This shrub is also known by the common names dune buckwheat, coast buckwheat, cliff buckwheat, or seacliff buckwheat.
Eriogonum longifolium, the longleaf eriogonum or long-leaf wild buckwheat, is a dicot of the family Polygonaceae. In addition to populations of E. longifolium var. longifolium found in Arkansas, Kansas, Louisiana, Missouri, New Mexico, Oklahoma, and Texas, there are varieties or subspecies that are geographically isolated and at various levels of endangerment. According to the University of Michigan Native American Ethnobotony database, Eriogonum longifolium has been used as a food by the Kiowa and as a medicinal by the Comanche.
Eriogonum longifolium Nutt. var. gnaphalifolium Gand., commonly referred to as scrub buckwheat is a dicot of the Polygonaceae family. It is listed as threatened in the US and endangered in Florida. Within Florida its most closely related species is Eriogonum tomentosum however there are three other varieties of Eriogonum longifolium found in other areas of the US.
Eriogonum giganteum, with the common name St. Catherine's lace, is a species of wild buckwheat in Southern California.
Eriogonum ovalifolium is a species of wild buckwheat known by the common name cushion buckwheat. It is native to western North America from California to Alberta, where it is a member of many plant communities in varied habitats.
Eriogonum flavum is a species of wild buckwheat.
Eriogonum longifolium var. lindheimeri, commonly known as Lindheimer's long-leaf eriogonum and Lindheimer's buckwheat, is a dicot of the family Polygonaceae, found in New Mexico and Texas.
Eriogonum tomentosum, commonly referred to as dogtongue buckwheat or dogtongue wild buckwheat, is a species in the Polygonaceae family.
Eriogonum corymbosum var. nilesii is a rare variety of Eriogonum corymbosum, a species of Polygonaceae, commonly known as Nile's wild buckwheat, Las Vegas buckwheat, or golden buckwheat. The plant can be found in the Mojave Desert, located in the Las Vegas Valley and Muddy Mountains region of Clark County, Nevada.
Astragalus tennesseensis is a species of flowering plant in the legume family known by the common name Tennessee milkvetch. It is native to the United States, where it is known from Illinois, Indiana, Tennessee and Alabama. Most of the occurrences are in Tennessee.
Eriogonum argophyllum is a species of wild buckwheat known by the common names Sulphur Hot Springs buckwheat, Silver Lake buckwheat, and Ruby Valley buckwheat. It is endemic to Nevada in the United States, where there is only one known population.
Eriogonum diatomaceum is a species of wild buckwheat known by the common name Churchill Narrows buckwheat. It is endemic to Nevada in the United States, where it is known only from the Pine Nut Mountains in Lyon County. It is limited to the Churchill Narrows near Fort Churchill State Historic Park. This plant was discovered in 1997 and described to science in 2002.
The Interior Low Plateaus are a physiographic region in eastern United States. It consists of a diverse landscape that extends from north Alabama across central Tennessee and Kentucky into southern Illinois, Indiana, and Ohio. Its natural communities are a matrix of temperate forests, woodlands, and prairies.
Leavenworthia is a genus of flowering plants in the family Brassicaceae. It includes about eight species native to the southern and southeastern United States. They are known generally as gladecresses.
Eriogonum zionis, common name Zion wild buckwheat or Point Sublime wild buckwheat, is a plant species native to the southwestern United States, the states of Utah and Arizona. It grows on sandy or gravelly soil at elevations of 1300–2300 m.
Silphium pinnatifidum, the tansy rosinweed or cutleaf prairie dock, is a species of flowering plant in the Composite family. 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.
