''Eriogonum longifolium'', the longleaf eriogonum or long-leaf wild buckwheat, is a

dicot The dicotyledons, also known as dicots (or, more rarely, dicotyls), are one of the two groups into which all the flowering plants (angiosperms) were formerly divided. The name refers to one of the typical characteristics of the group: namely, t ...

of the family

Polygonaceae The Polygonaceae are a family of flowering plants known informally as the knotweed family or smartweed—buckwheat family in the United States. The name is based on the genus ''Polygonum'', and was first used by Antoine Laurent de Jussieu in 1 ...

. In addition to populations of ''E. longifolium'' var. ''longifolium'' found in

Arkansas Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the ...

Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to ...

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a U.S. state, state in the Deep South and South Central United States, South Central regions of the United States. It is the List of U.S. states and territories by area, 20th-smal ...

Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ...

New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe, New Mexico, Santa Fe , LargestCity = Albuquerque, New Mexico, Albuquerque , LargestMetro = Albuquerque metropolitan area, Tiguex , Offi ...

, Oklahoma, and

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

,PLANTS Profile for Eriogonum longifolium var. longifolium (longleaf buckwheat) , USDA PLANTS
/ref> there are varieties or subspecies that are geographically isolated and at various levels of

endangerment Endangerment is a type of crime involving conduct that is wrongful and reckless or wanton, and likely to produce death or grievous bodily harm to another person. There are several kinds of endangerment, each of which is a criminal act that can ...

. According to the

University of Michigan , mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As o ...

Native American Ethnobotony database, ''Eriogonum longifolium'' has been used as a food by the

Kiowa Kiowa () people are a Native Americans in the United States, Native American tribe and an indigenous people of the Great Plains of the United States. They migrated southward from western Montana into the Rocky Mountains in Colorado in the 17th a ...

and as a

medicinal Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practic ...

by the Comanche.UM-Dearborn College of Arts, Sciences, and Letters
/ref> ''Eriogonuum longifolium '' leaves are described as being

lanceolate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regula ...

oblanceolate The following is a list of terms which are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflet (bo ...

oblong An oblong is a non-square rectangle. Oblong may also refer to: Places * Oblong, Illinois, a village in the United States * Oblong Township, Crawford County, Illinois, United States * A strip of land on the New York-Connecticut border in the Un ...

and with

tomentose Trichomes (); ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plan ...

coating; the plant develops flowering stems which are up to 17 dm (67 in) tall.

Varieties or subspecies

* Tennessee, Alabama and Kentucky: ''E. longifolium'' var. ''harperi'' (Harper's buckwheat or Harper's umbrella plant) * Florida: ''E. longifolium'' var. ''gnaphalifolium'' Gandog, (sometimes known as ''Eriogonum floridanum'' Small) - Scrub Buckwheat or Longleaf Wild Buckwheat * New Mexico: ''E. longifolium'' var. ''lindheimeri''PLANTS Profile for Eriogonum longifolium var. lindheimeri () , USDA PLANTS
/ref>

References

External links

- Scrub buckwheat photos

- Oklahoma photos of ''E. longifolium''

- Texas photos of ''E. longifolium'' longifolium Plants described in 1835 {{Polygonaceae-stub