Eriogonum
Encyclopedia
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 (Eriogonum fasciculatum).
It came into the news in 2005 when the Mount Diablo buckwheat
(Eriogonum truncatum, believed to be extinct) was rediscovered.
e of some Lepidoptera
(butterflies and moths). Several of these are monophagous, meaning their caterpillar
s only feed on this genus, sometimes just on a single taxon
of Eriogonum. Wild buckwheat flowers are also an important source of food for these and other Lepidoptera. In some cases, the relationship is so close that Eriogonum and dependent Lepidoptera are in danger of coextinction
.
Monophagous Lepidoptera on wild buckwheat include:
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of flowering plants, in the family Polygonaceae
Polygonaceae
Polygonaceae is a family of flowering plants known informally as the "knotweed family" or "smartweed family"— "buckwheat family" in the United States. The name is based on the genus Polygonum and was first used by Antoine Laurent de Jussieu in 1789 in his book, Genera Plantarum. The name refers...
. The genus is found in North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
and is known as wild buckwheat. This is a highly species-rich genus, and indications are that active speciation
Speciation
Speciation is the evolutionary process by which new biological species arise. The biologist Orator F. Cook seems to have been the first to coin the term 'speciation' for the splitting of lineages or 'cladogenesis,' as opposed to 'anagenesis' or 'phyletic evolution' occurring within lineages...
is continuing. It includes some common wildflowers such as the California buckwheat (Eriogonum fasciculatum).
It came into the news in 2005 when the Mount Diablo buckwheat
Mount Diablo buckwheat
Eriogonum truncatum, the Mount Diablo buckwheat, is a small pink wildflower, believed to have been extinct since 1936 until its rediscovery in 2005. The species is only known to live on Mount Diablo in Contra Costa County, northern California....
(Eriogonum truncatum, believed to be extinct) was rediscovered.
Importance for Lepidoptera
Eriogonum species are used as food plants by the larvaLarva
A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle...
e of some Lepidoptera
Lepidoptera
Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...
(butterflies and moths). Several of these are monophagous, meaning their caterpillar
Caterpillar
Caterpillars are the larval form of members of the order Lepidoptera . They are mostly herbivorous in food habit, although some species are insectivorous. Caterpillars are voracious feeders and many of them are considered to be pests in agriculture...
s only feed on this genus, sometimes just on a single taxon
Taxon
|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...
of Eriogonum. Wild buckwheat flowers are also an important source of food for these and other Lepidoptera. In some cases, the relationship is so close that Eriogonum and dependent Lepidoptera are in danger of coextinction
Coextinction
Coextinction of a species is the loss of a species as a consequence of the extinction of another. The term was originally used in the context of the extinction of parasitic insects following the loss of their specific hosts...
.
Monophagous Lepidoptera on wild buckwheat include:
- Apodemia mormoApodemia mormoThe Mormon Metalmark is a species of Metalmark butterfly . Its upperside is orange-brown to black, checkered with black and white spots. Its caterpillar host is various species of Eriogonum...
(Mormon metalmark) - feeds exclusively on Eriogonum- Apodemia mormo langei (Lange's metalmark) - only known from Eriogonum nudum ssp. auriculatum
- Chionodes dammersi - feeds exclusively on Eriogonum
- Chionodes luteogeminatus - only known from Eriogonum niveum
- Euphilotes enoptes smithi (Smith's blue butterflySmith's blue butterflySmith's blue butterfly, Euphilotes enoptes smithi, is an organism in the family Lycaenidae, which is also known as the "gossamer wing" family...
) - only known from Eriogonum latifolium and Eriogonum parvifolium
Selected species
- Eriogonum alatum - winged buckwheat
- Eriogonum alexanderae
- Eriogonum alpinumEriogonum alpinumEriogonum alpinum is a species of wild buckwheat known by the common name Trinity buckwheat. This rare plant is endemic to California, where it is known from only about ten occurrences in the vicinity of Mount Eddy near the border between Siskiyou and Trinity Counties. It is a state-listed...
- trinity buckwheat - Eriogonum ampullaceumEriogonum ampullaceumEriogonum ampullaceum is a species of wild buckwheat known by the common name Mono buckwheat. It is native to an area of the western Great Basin straddling the border between California and Nevada just east of the Sierra Nevada. It grows in sandy stretches of high desert and plateau...
- mono buckwheat - Eriogonum androsaceum - rock-jasmine buckwheat
- Eriogonum angulosumEriogonum angulosumEriogonum angulosum is a species of wild buckwheat known by the common name anglestem buckwheat. It is endemic to California where it is common to abundant in many types of habitat, from chaparral to oak woodland to sagebrush to desert sands. This is an annual herb producing a spreading to erect...
- anglestem buckwheat - Eriogonum apiculatumEriogonum apiculatumEriogonum apiculatum is a species of wild buckwheat known by the common name San Jacinto buckwheat. It is endemic to California, where it is known from the San Jacinto, Santa Rosa, Palomar, and Cuyamaca Mountains of San Diego and western Riverside Counties. Its habitat includes chaparral and wooded...
- San Jacinto buckwheat - Eriogonum apricumEriogonum apricumEriogonum apricum is a rare species of wild buckwheat known by the common name Ione buckwheat. It is endemic to Amador County, California, in the United States.-Description:...
- Ione buckwheat - Eriogonum arborescensEriogonum arborescensEriogonum arborescens is a species of wild buckwheat known by the common name Santa Cruz Island buckwheat. This shrub is endemic to the Channel Islands of California. It may be anywhere from one half to two meters in height and sprawl from one half to three meters in diameter across the ground...
- Santa Cruz Island buckwheat - Eriogonum argillosumEriogonum argillosumEriogonum argillosum is a species of wild buckwheat known by the common names clay buckwheat, clay-loving buckwheat, and Coast Range wild buckwheat. It is endemic to California, where it is known only from San Benito and Monterey Counties. It grows on clay substrates, often of serpentine origin...
- clay buckwheat - Eriogonum baileyiEriogonum baileyiEriogonum baileyi is a species of wild buckwheat known by the common name Bailey's buckwheat. It is native to the western United States, where it is a common member of the flora in several types of sandy habitat, such as desert and sagebrush. This is an annual herb producing a spreading to erect,...
- Bailey's buckwheat - Eriogonum brachyanthumEriogonum brachyanthumEriogonum brachyanthum is a species of wild buckwheat known by the common name shortflower buckwheat. It is native to eastern California and western Nevada, particularly the Mojave Desert region, where it is common to abundant, and even sometimes weedy. It is also known from southern Oregon. The...
- shortflower buckwheat - Eriogonum brachypodumEriogonum brachypodumEriogonum brachypodum is a species of wild buckwheat known by the common name Parry's buckwheat. This annual herb is native to the southwestern United States from California to Utah, especially the Mojave Desert, where it grows in sandy and gravelly substrates...
- Parry's buckwheat - Eriogonum breedloveiEriogonum breedloveiEriogonum breedlovei is a rare species of wild buckwheat known by the common name Paiute buckwheat. It is endemic to the High Sierra Nevada of California, where its two varieties are uncommon members of the flora in granite and limestone rocky high mountain habitat.-Description:Eriogonum breedlovei...
- Paiute buckwheat - Eriogonum butterworthianumEriogonum butterworthianumEriogonum butterworthianum is a rare species of wild buckwheat known by the common name Butterworth's buckwheat. It is endemic to the Santa Lucia Mountains of central Monterey County, California, where it is known from a few occurrences in the wilderness southeast of Big Sur in the vicinity of...
- Butterworth's buckwheat - Eriogonum caespitosumEriogonum caespitosumEriogonum caespitosum is a species of wild buckwheat known by the common name matted buckwheat, or mat buckwheat. This is a common perennial plant native to the western United States from California to Montana, especially the Great Basin...
- matted buckwheat - Eriogonum calcareum
- Eriogonum callistumEriogonum callistumEriogonum callistum is a rare species of wild buckwheat known by the common name Tehachapi buckwheat. It is endemic to the Tehachapi Mountains of Kern County, California, where there are an estimated 2000 individuals in existence. It grows in rocky limestone soils in chaparral habitat among...
- Tehachapi buckwheat - Eriogonum cedrorumEriogonum cedrorumEriogonum cedrorum is a rare species of wild buckwheat known by the common name The Cedars buckwheat. It is endemic to Sonoma County, California where it is known only from The Cedars, an unincorporated area outside of Guerneville near Cazadero....
- The Cedars buckwheat - Eriogonum cernuumEriogonum cernuumEriogonum cernuum is a species of wild buckwheat known by the common name nodding buckwheat. It is native to much of western North America, where it grows in sandy and gravelly habitat, including woodland and sagebrush. It is an annual herb growing up to about 60 centimeters in maximum height with...
- nodding buckwheat - Eriogonum cinereumEriogonum cinereumEriogonum cinereum is a species of wild buckwheat known by the common names coastal buckwheat and ashyleaf buckwheat. This shrub is endemic to the coastline of California, where it grows on beaches and bluffs and in coastal scrub and chaparral...
- ashyleaf buckwheat, coastal buckwheat - Eriogonum cithariformeEriogonum cithariformeEriogonum cithariforme is a species of wild buckwheat known by the common name cithara buckwheat. It is endemic to the mountains of southern California, where it grows in sandy areas in a number of local habitat types, such as chaparral. It is an annual herb growing up to about half a meter in...
- Cithara buckwheat - Eriogonum compositum - arrowleaf buckwheat
- Eriogonum congdoniiEriogonum congdoniiEriogonum congdonii is a species of wild buckwheat known by the common name Congdon's buckwheat. It is endemic to the Klamath Mountains of northern California, where it is an uncommon member of the serpentine soils flora in the local forests. It is a low, matting shrub growing up to about half a...
- Congdon's buckwheat - Eriogonum contiguumEriogonum contiguumEriogonum contiguum is an uncommon species of wild buckwheat known by the common names Reveal's buckwheat and annual desert trumpet. It is native to Death Valley in California and adjacent sections of Nevada, where it is a plant of sandy desert habitat...
- Reveal's buckwheat - Eriogonum corymbosum - crispleaf buckwheat
- Eriogonum corymbosum var. nilesiiEriogonum corymbosum var. nilesiiEriogonum corymbosum var. nilesii, is 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 and Muddy Mountains region of Clark County, Nevada.-External links:**...
- Nile's wild buckwheat, Las Vegas buckwheat
- Eriogonum corymbosum var. nilesii
- Eriogonum covilleanumEriogonum covilleanumEriogonum covilleanum is a species of wild buckwheat known by the common name Coville's buckwheat. It is endemic to California, where it grows in the Coast Ranges from the Bay Area to the hills north of the Los Angeles area. It is uncommon in general but it can be locally common in some places...
- Coville's buckwheat - Eriogonum crocatum - conejo buckwheat or saffron buckwheat
- Eriogonum cusickii - Cusick's buckwheat
- Eriogonum dasyanthemumEriogonum dasyanthemumEriogonum dasyanthemum is a species of wild buckwheat known by the common name chaparral buckwheat. This plant is endemic to California where it is limited to the Northern Coast Ranges, but it is quite common in its native range.-Description:...
- chaparral buckwheat - Eriogonum davidsoniiEriogonum davidsoniiEriogonum davidsonii is a species of wild buckwheat known by the common name Davidson's buckwheat. This plant is native to the southwestern United States and northern Baja California, where it grows in sandy or gravelly soils in a variety of habitats. It is a spindly annual herb growing up to 40...
- Davidson's buckwheat - Eriogonum deflexumEriogonum deflexumEriogonum deflexum is a species of wild buckwheat known by the common names flatcrown buckwheat, flat-top buckwheat, and skeletonweed. This plant is native to the southwestern United States and northwestern Mexico, where it is common and grows in a variety of habitats, especially desert scrub. It...
- flatcrown buckwheat - Eriogonum deserticolaEriogonum deserticolaEriogonum deserticola is a species of wild buckwheat known by the common name Colorado Desert buckwheat. It is native to the Sonoran Desert of the southwestern United States and northern Mexico, including parts of the Colorado Desert near the Salton Sea. It is a plant of the desert sand dunes...
- Colorado Desert buckwheat - Eriogonum diclinumEriogonum diclinumEriogonum diclinum is a species of wild buckwheat known by the common name Jaynes Canyon buckwheat. It is native to the Klamath Mountains of northern California and southern Oregon, where it is an uncommon member of plant communities on serpentine soils. This is a small dioecious shrub forming...
- Jaynes Canyon buckwheat - Eriogonum domitum
- Eriogonum douglasiiEriogonum douglasiiEriogonum douglasii is a species of wild buckwheat known by the common name Douglas' buckwheat. It is native to the western United States, including the Pacific Northwest and part of the Great Basin....
- Douglas buckwheat - Eriogonum elatumEriogonum elatumEriogonum elatum is a species of wild buckwheat known by the common name tall woolly buckwheat. It is native to the western United States from California to Idaho. This is a perennial herb varying in size from one half to 1.5 meters in height. Its long leaves are located at the base of the plant...
- tall woolly buckwheat - Eriogonum eremicolaEriogonum eremicolaEriogonum eremicola is a rare species of wild buckwheat known by the common names Telescope Peak buckwheat and Wild Rose Canyon buckwheat. It is endemic to Inyo County, California, where it is known from only a few occurrences in the Inyo Mountains and Telescope Peak in Death Valley. It grows in...
- Telescope Peak buckwheat - Eriogonum evanidumEriogonum evanidumEriogonum evanidum is a rare species of wild buckwheat known by the common name vanishing wild buckwheat. It is native to southern California and Baja California, where it has been collected from widely scattered areas. Most historical occurrences are now extirpated and the plant has not been...
- vanishing wild buckwheat - Eriogonum fasciculatumEriogonum fasciculatumEriogonum fasciculatum is a species of wild buckwheat known by the common names California buckwheat and Eastern Mojave buckwheat. This common shrub is native to the southwestern United States and northwestern Mexico, where it grows on scrubby slopes and in chaparral and dry washes in a number of...
- California buckwheat - Eriogonum flavumEriogonum flavumEriogonum flavum is a species of wild buckwheat known by the common name alpine golden buckwheat. It is native to northwestern North America from Alaska to Colorado. It is a mat-forming herb producing erect flowering stems to a maximum height approaching 40 centimeters. Leaves are located at ground...
- yellow buckwheat - Eriogonum giganteumEriogonum giganteumEriogonum giganteum is a species of wild buckwheat.-Description:Eriogonum giganteum is variable in size, from a thin half a meter in height and width to a sprawling or rounded bush over three meters high and wide. The leathery, woolly, oval-shaped leaves are clustered sparsely along the mostly...
- Saint Catherine's lace- Eriogonum giganteum var. compactum - Santa Barbara Island buckwheat
- Eriogonum gilmaniiEriogonum gilmaniiEriogonum gilmanii is a species of wild buckwheat known by the common name Gilman's buckwheat. This plant is endemic to Inyo County, California, where it is known only from the desert mountain slopes of the Cottonwood, Last Chance, and Panamint Ranges. This is a flat mat-forming, woody perennial...
- Gilman's buckwheat
- Eriogonum gossypinumEriogonum gossypinumEriogonum gossypinum is an uncommon species of wild buckwheat known by the common name cottony buckwheat. It is endemic to California, where it is known from the southern Central Valley and some of the adjacent foothills. It is often found on clay soils. It is an annual herb producing a gray or...
- cottony buckwheat - Eriogonum gracileEriogonum gracileEriogonum gracile is a species of wild buckwheat known by the common name slender woolly buckwheat. It is native to California, where it is widespread across the state, and to parts of northwestern Mexico. It grows in many types of habitat, often in sandy places. It is often found on clay soils. It...
- slender woolly buckwheat - Eriogonum gracilipesEriogonum gracilipesEriogonum gracilipes is a species of wild buckwheat known by the common name White Mountains buckwheat. It is found in granite and sandstone gravels on the slopes of the southern Sierra Nevada and Inyo Mountains of California and the White Mountains of California and Nevada. This small perennial...
- White Mountain buckwheat, raspberry buckwheat - Eriogonum gracillimumEriogonum gracillimumEriogonum gracillimum is a species of wild buckwheat known by the common name rose and white buckwheat. It is endemic to California but is common and widespread in many areas there. This is a spindly annual herb reaching anywhere from 5 to 50 centimeters in height...
- rose and white buckwheat - Eriogonum grandeEriogonum grandeEriogonum grande is a species of wild buckwheat known by the common name redflower buckwheat. It is native to northwestern Baja California, as well as the Channel Islands of California. It is a mat-forming perennial herb producing tall, stout inflorescences of white, pink, or red flowers...
- redflower buckwheat - Eriogonum gypsophilumEriogonum gypsophilumEriogonum gypsophilum is a rare species of wild buckwheat known by the common names Seven River Hills buckwheat and gypsum wild buckwheat. It is endemic to the state of New Mexico in the United States, where it is known from only three sites in Eddy County. It is limited to a specific type of soil...
- gypsum wild buckwheat - Eriogonum heermanniiEriogonum heermanniiEriogonum heermannii is a species of wild buckwheat known by the common name Heermann's buckwheat. It is native to the southwestern United States from California to Utah where it grows on rocky slopes, desert flats, and dry washes.-Description:...
- Heermann's buckwheat - Eriogonum heracleoidesEriogonum heracleoidesEriogonum heracleoides has many flowering clusters that are cream or off-white in color. Its usual habitat is rocky areas such as sagebrush deserts and Ponderosa pine forests...
- parsnip-flower Buckwheat - Eriogonum hirtellumEriogonum hirtellumEriogonum hirtellum is a species of wild buckwheat known by the common name Klamath Mountain buckwheat. It is endemic to the Klamath Mountains of far northern California, where it is known from only a few occurrences.-Description:...
- Klamath Mountain Buckwheat - Eriogonum hoffmanniiEriogonum hoffmanniiEriogonum hoffmannii is a species of wild buckwheat known by the common name Hoffmann's buckwheat. It is endemic to Inyo County, California, where it is found only in the mountains around Death Valley; most of the known populations of the plant are located in Death Valley National Park...
- Hoffmann's buckwheat - Eriogonum hookeriEriogonum hookeriEriogonum hookeri is a species of wild buckwheat known by the common name Hooker's buckwheat. It is native to the Intermountain West of the United States, where it grows in plateau and desert habitat.-Description:...
- Hooker's buckwheat - Eriogonum incanumEriogonum incanumEriogonum incanum is a species of wild buckwheat known by the common name frosted buckwheat. It is native to the Sierra Nevada of California and extreme western Nevada. It is also known from Oregon. -Description:...
- frosted buckwheat - Eriogonum inflatum - desert trumpet, bladderstem, Indian pipe-weed
- Eriogonum intrafractumEriogonum intrafractumEriogonum intrafractum is a species of wild buckwheat known by the common names jointed buckwheat and napkinring. This plant is endemic to Inyo County, California, where it is known only from the mountain ranges surrounding Death Valley...
- napkinring, jointed buckwheat - Eriogonum jamesiiEriogonum jamesiiEriogonum jamesii is a species of wild buckwheat known by the common name James' buckwheat and Antelope sage. It is native to southwestern North America, in: Colorado, Utah, Arizona, Texas, New Mexico, Oklahoma, and Nebraska....
- James' buckwheat - Eriogonum kelloggiiEriogonum kelloggiiEriogonum kelloggii is a rare species of wild buckwheat known by the common names Red Mountain buckwheat and Kellogg's buckwheat. It is endemic to Mendocino County, California, where it is known from only five occurrences on Red Mountain near Leggett...
- red mountain buckwheat
- Eriogonum kennedyiEriogonum kennedyiEriogonum kennedyi is a species of wild buckwheat known by the common name Kennedy's buckwheat.-Description:This is a perennial herb forming a small cushiony mat covered in oval leaves up to about centimeter long. The greenish leaves are coated in woolly fibers in shades of brown to pink or white...
- Kennedy's buckwheat - Eriogonum latensEriogonum latensEriogonum latens is a species of wild buckwheat known by the common name Inyo buckwheat. It is native to the eastern slopes of the Sierra Nevada and the Inyo Mountains of California and the White Mountains, which extend just into western Nevada...
- Inyo buckwheat - Eriogonum latifoliumEriogonum latifoliumEriogonum latifolium is a species of wild buckwheat known by the common names seaside buckwheat and coast buckwheat. This plant is native to the coastline of the western United States from Washington to central California, where it is a common resident of coastal bluffs and scrub.-Description:This...
- seaside buckwheat - Eriogonum libertiniEriogonum libertiniEriogonum libertini is a species of wild buckwheat known by the common name Dubakella Mountain buckwheat. This uncommon plant is endemic to California where it grows in the rocky serpentine terrain of the southern Klamath Mountains and nearby ranges....
- Dubakella Mountain buckwheat - Eriogonum lobbiiEriogonum lobbiiEriogonum lobbii is a species of wild buckwheat known by the common name Lobb's buckwheat. It is native to most of the mountain ranges of northern California and their extensions into Oregon and Nevada...
- Lobb's buckwheat - Eriogonum longifoliumEriogonum longifoliumEriogonum longifolium - 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...
- longleaf buckwheat- Eriogonum longifolium var. harperiEriogonum longifolium var. harperiHarper's umbrella plant Eriogonum longifolium Nutt. var. harperi, also known as Harper's buckwheat or Harper's umbrella plant is a dicot of the family Polygonaceae, found in areas of nutrient-poor shale soils in Alabama, Kentucky and Tennessee...
- Harper's umbrella plant or Harper's buckwheat - Eriogonum longifolium var. gnaphalifoliumEriogonum longifolium var. gnaphalifoliumEriogonum 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...
- scrub buckwheat or long-leaf wild Buckwheat - Eriogonum longifoliumEriogonum longifoliumEriogonum longifolium - 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...
var. longifolium - longleaf buckwheat - Eriogonum longifolium var. lindheimeriEriogonum longifolium var. lindheimeriEriogonum 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.-See also:...
- Lindheimer's long-leaf Eriogonum or Lindheimer's buckwheat
- Eriogonum longifolium var. harperi
- Eriogonum luteolumEriogonum luteolumEriogonum luteolum is a species of wild buckwheat known by the common name goldencarpet buckwheat. It is native to many of the mountain ranges of California and southern Oregon, including the Sierra Nevada, Cascades and California Coast Ranges...
- goldencarpet buckwheat - Eriogonum maculatumEriogonum maculatumEriogonum maculatum is a species of wild buckwheat known by the common name spotted buckwheat. It is native to western North America from Washington to Baja California to Utah, where it can be found in a number of habitats, often in abundance....
- spotted buckwheat - Eriogonum marifoliumEriogonum marifoliumEriogonum marifolium is a species of wild buckwheat known by the common name marumleaf buckwheat. It is native to the Sierra Nevada and Klamath Mountains of California and the ranges' extensions into Oregon and Nevada.-Description:...
- marumleaf buckwheat - Eriogonum microthecumEriogonum microthecumEriogonum microthecum is a species of wild buckwheat known by the common name slender buckwheat. It is native to the western United States where it is found in a variety of habitats, particularly in dry areas such as deserts.-Description:...
- slender buckwheat - Eriogonum mohavenseEriogonum mohavenseEriogonum mohavense is a species of wild buckwheat known by the common name Western Mojave buckwheat. It is endemic to the Mojave Desert of California. It is an annual herb producing a slender, erect flowering stem up to about 30 centimeters tall. The woolly, rounded leaves are located around the...
- Western Mojave buckwheat - Eriogonum molestumEriogonum molestumEriogonum molestum is a species of wild buckwheat known by the common name pineland buckwheat. It is endemic to southern California, where it grows in the Transverse Ranges of Ventura County to the Peninsular Ranges of San Diego County.-Description:...
- pineland buckwheat - Eriogonum nervulosumEriogonum nervulosumEriogonum nervulosum is a species of wild buckwheat known by the common name Snow Mountain buckwheat. This uncommon plant is endemic to the inland North Coast Ranges of California, where it is known from only a handful of occurrences, most of which are in Lake County...
- Snow Mountain buckwheat - Eriogonum nidulariumEriogonum nidulariumEriogonum nidularium is a species of wild buckwheat known by the common name birdnest buckwheat. It is native to the sandy flats and dry washes of the Mojave Desert and Great Basin in the western United States, where it is common and abundant...
- birdnest buckwheat - Eriogonum niveum - snow buckwheat
- Eriogonum nortoniiEriogonum nortoniiEriogonum nortonii is a species of wild buckwheat known by the common name Pinnacles buckwheat. This small annual herb is endemic to California where it is known mainly from a few occurrences around the border between Monterey and San Benito Counties...
- pinnacles buckwheat - Eriogonum nudumEriogonum nudumEriogonum nudum is a perennial shrub of the wild buckwheat genus which is known by the common name Naked buckwheat.-Description:The Eriogonum nudum plant is a tall, bare, leafless stem, bifurcating into more stems, each topped with rounded clusters of white or pale pink or yellow flowers growing up...
- naked buckwheat- Eriogonum nudum ssp. auriculatum
- Eriogonum nummulareEriogonum nummulareEriogonum nummulare is a species of wild buckwheat known by the common names Kearney's buckwheat and money buckwheat. It is native to the Great Basin of the United States from California to Utah, where it grows on sandy slopes and plateaus....
- Kearney buckwheat, money buckwheat - Eriogonum ochrocephalumEriogonum ochrocephalumEriogonum ochrocephalum is a species of wild buckwheat known by the common name whitewoolly buckwheat. It is native to the Great Basin of the United States, where it grows in local habitat such as sagebrush. It is a perennial herb forming a thick clump or mat covered in clusters of woolly...
- whitewoolly buckwheat - Eriogonum ovalifoliumEriogonum ovalifoliumEriogonum 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...
- cushion buckwheat, oval-leaf buckwheat - Eriogonum palmerianumEriogonum palmerianumEriogonum palmerianum is a species of wild buckwheat known by the common name Palmer's buckwheat. It is native to the southwestern United States and Great Basin region, where it grows in many types of desert and sagebrush plateau habitat....
- Palmer's buckwheat - Eriogonum panamintenseEriogonum panamintenseEriogonum panamintense is a species of wild buckwheat known by the common name Panamint Mountain buckwheat. It is native to several of the desert mountain ranges of eastern California and western Nevada, including the Panamint Range...
- Panamint Mountain buckwheat - Eriogonum parishiiEriogonum parishiiEriogonum parishii is a species of wild buckwheat known by the common name mountainmist. It is found mainly in southern California, where it grows in many of the mountain ranges from desert to coast, and it is also known from Baja California and Arizona. It grows in various types of mountain slope...
- mountainmist - Eriogonum parvifoliumEriogonum parvifoliumEriogonum parvifolium is a species in the Polygonaceae family 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...
- coast buckwheat, dune buckwheat or cliff buckwheat - Eriogonum pelinophilumEriogonum pelinophilumEriogonum pelinophilum is a rare species of wild buckwheat known by the common name clay-loving wild buckwheat. It is endemic to the state of Colorado in the United States, where it is known from only two counties. The most recent estimates available suggest there are 12 occurrences in existence...
- clay-loving wild buckwheat - Eriogonum pendulumEriogonum pendulumEriogonum pendulum is a rare species of wild buckwheat known by the common name Waldo buckwheat. It is endemic to the Klamath Mountains of Josephine County, Oregon, and Del Norte County, California, where it is a member of the serpentine soils flora....
- waldo buckwheat - Eriogonum plumatellaEriogonum plumatellaEriogonum plumatella is a species of wild buckwheat known by the common name yucca buckwheat. It is native to the desert southwest of the United States.-Description:...
- yucca buckwheat - Eriogonum prattenianumEriogonum prattenianumEriogonum prattenianum is a species of wild buckwheat known by the common name Nevada City buckwheat.-Description:Eriogonum prattenianum is a small shrub growing up to about half a meter tall when erect in form or growing in a clump or mat lined with oval-shaped woolly leaves...
- Nevada City buckwheat - Eriogonum prociduumEriogonum prociduumEriogonum prociduum is a species of wild buckwheat known by the common name prostrate buckwheat. It is native to the western Great Basin of the United States in the region where Oregon meets California and Nevada, especially the Modoc Plateau, where it grows in exposed volcanic soils...
- prostrate buckwheat
- Eriogonum pusillumEriogonum pusillumEriogonum pusillum is a species of wild buckwheat known by the common name yellowturbans. It is native to the western United States where it grows in sandy soils in a number of habitats, especially in the Mojave Desert and Great Basin.-Description:...
- yellowturbans - Eriogonum pyrolifoliumEriogonum pyrolifoliumEriogonum pyrolifolium is a species of wild buckwheat...
- pyrola-leaved buckwheat - Eriogonum reniformeEriogonum reniformeEriogonum reniforme is a species of wild buckwheat known by the common name kidney-leaf buckwheat. It is native to the desert southwest of the United States in California, Arizona, and Nevada, and its range may extend into Mexico.-Description:...
- kidneyleaf buckwheat - Eriogonum rixfordiiEriogonum rixfordiiEriogonum rixfordii is an uncommon species of wild buckwheat known by the common name pagoda buckwheat. It is native to the Mojave Desert, where it grows in California's Death Valley and adjacent parts of Nevada.-Description:...
- pagoda buckwheat - Eriogonum rosenseEriogonum rosenseEriogonum rosense is a species of wild buckwheat known by the common name rosy buckwheat. It is native to the mountains of eastern California and its range extends into Nevada.-Description:...
- rosy buckwheat, mountain rose buckwheat - Eriogonum roseumEriogonum roseumEriogonum roseum is a species of wild buckwheat known by the common name wand buckwheat. It is native to much of western California and the Sierra Nevada foothills, as well as parts of Oregon, and it is widespread and common in several plant communities.-Description:This is an erect annual herb...
- wand buckwheat - Eriogonum salicornioides - glasswort buckwheat
- Eriogonum saxatileEriogonum saxatileEriogonum saxatile is a species of wild buckwheat known by the common name hoary buckwheat. It is native to the dry, rocky mountain slopes of California and Nevada, where it is a common plant.-Description:...
- hoary buckwheat - Eriogonum shockleyi - cowpie buckwheat
- Eriogonum siskiyouenseEriogonum siskiyouenseEriogonum siskiyouense is a rare species of wild buckwheat known by the common name Siskiyou buckwheat. It is endemic to the southern Klamath Mountains of far northern California, where it is known only from the area between Mount Eddy and the Scott Mountains around the border between Siskiyou and...
- Siskiyou buckwheat - Eriogonum spectabileEriogonum spectabileEriogonum spectabile is a rare species of wild buckwheat known by the common name Barron's buckwheat. It is endemic to Plumas County, California, where it is known from two occurrences in Lassen National Forest near Chester. There are approximately 250 individuals in existence. It grows in scrubby,...
- Barron's buckwheat - Eriogonum spergulinumEriogonum spergulinumEriogonum spergulinum is a species of wild buckwheat known by the common name spurry buckwheat.-Varieties:There are three varieties: two are limited and endemic to the Sierra Nevada in California; while the more common of the three, var...
- spurry buckwheat - Eriogonum sphaerocephalumEriogonum sphaerocephalumEriogonum sphaerocephalum is a species of wild buckwheat known by the common name rock buckwheat. It is native to the western United States from northeastern California to Idaho, where it is a common member of several habitat types, such as sagebrush....
- rock buckwheat - Eriogonum strictumEriogonum strictumEriogonum strictum is a species of wild buckwheat known by the common name Blue Mountain buckwheat. It is a common plant of western North America from northern California to British Columbia where it is found along rocky slopes and scrubland....
- blue mountain buckwheat - Eriogonum ternatumEriogonum ternatumEriogonum ternatum is a species of wild buckwheat known by the common name ternate buckwheat. It is native to mountain ranges of northern California and southern Oregon, where it grows in the serpentine soil of the forests. This is a perennial herb forming mats up to half a meter wide with rosetted...
- ternate buckwheat - Eriogonum thomasiiEriogonum thomasiiEriogonum thomasii is a species of wild buckwheat known by the common name Thomas' buckwheat. It is native to the desert southwest of the United States and northern Mexico where it is common in many areas, sometimes becoming a weed.-Description:...
- Thomas' buckwheat - Eriogonum thurberiEriogonum thurberiEriogonum thomasii is a species of wild buckwheat known by the common name Thurber's buckwheat. It is native to the desert southwest of North America in Arizona, California, New Mexico and Northwest Mexico where it is common to abundant in many areas....
- Thurber's buckwheat - Eriogonum tomentosumEriogonum tomentosumEriogonum tomentosum, commonly referred to as dogtongue buckwheat or dogtongue wild buckwheat, is a species in the Polygonaceae family.-Distribution:...
- dogtongue wild buckwheat - Eriogonum trichopesEriogonum trichopesEriogonum trichopes is a species of wild buckwheat known by the common name little desert trumpet. It is native to the mountain slopes and deserts of the southwestern United States from California to New Mexico, and its range extends into Mexico....
- little desert trumpet
- Eriogonum tripodumEriogonum tripodumEriogonum tripodum is a rare species of wild buckwheat known by the common name tripod buckwheat. It is endemic to California, where it is known from the Sierra Nevada foothills and northern sections of the Coast Ranges.-Description:...
- tripod buckwheat - Eriogonum truncatum - Mount Diablo buckwheat
- Eriogonum umbellatumEriogonum umbellatumEriogonum umbellatum is a species of wild buckwheat known by the common name sulphurflower buckwheat, or simply sulphur flower. It is native to western North America from California to Colorado to central Canada, where it is abundant and found in many habitats...
- sulphurflower buckwheat - Eriogonum ursinumEriogonum ursinumEriogonum ursinum is a species of wild buckwheat known by the common names Bear Valley buckwheat and talus buckwheat. It is endemic to northern California where it is found on mountains from the northern Sierra Nevada to the southern Klamath Mountains.-Description:This is an uncommon perennial herb...
- talus buckwheat, Bear Valley buckwheat - Eriogonum vimineumEriogonum vimineumEriogonum vimineum is a species of wild buckwheat known by the common name wickerstem buckwheat. It is native to the Northwestern United States, California, and Nevada where it is common to abundant in many types of habitat, including the Sierra Nevada.-Description:Eriogonum vimineum is a slender...
- wickerstem buckwheat - Eriogonum viridescensEriogonum viridescensEriogonum viridescens is a species of wild buckwheat known by the common name twotooth buckwheat. It is endemic to California, where it grows in the Central Coast Ranges through the Transverse Ranges and into the Mojave Desert, as well as in the Central Valley...
- twotooth buckwheat - Eriogonum wrightiiEriogonum wrightiiEriogonum wrightii is a species of wild buckwheat known by the common names bastardsage and Wright's buckwheat. It is native to the Southwestern United States, California, and Northwest Mexico, where it grows in many plant communities, such as chaparral, in rocky habitats from mountains to...
- bastardsage - Eriogonum zapatoense