| Eriogonum siskiyouense | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Eriogonum |
| Species: | E. siskiyouense |
| Binomial name | |
| Eriogonum siskiyouense Small | |
Eriogonum siskiyouense is a rare species of wild buckwheat known by the common name Siskiyou buckwheat.
The plant is endemic to far northern California. It is known only from the area between Mount Eddy in the Trinity Mountains and the Scott Mountains, around the border of Siskiyou County and Trinity County. Both ranges are in the southern Klamath Mountains System.
It is a member of the local serpentine soils flora, found at elevations of 1,600–2,800 metres (5,200–9,200 ft) in yellow pine forest habitats within the Shasta-Trinity National Forest.
Eriogonum siskiyouense is perennial herb forms mats up to 0.5 metres (1.6 ft) wide around a woody caudex. It bears clusters of small rounded to oval leaves each under a centimeter long and coated in gray woolly fibers at least on the undersides.
The flowering stem arising from the caudex has a whorl of two to four leaflike bracts around the middle and is otherwise naked but for a coat of woolly hairs. Atop the scape are the bright yellow flowers, which are usually arranged in a spherical cluster.
 | This Polygonaceae article is a stub. You can help Wikipedia by expanding it. |
Eriogonum is 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 crocatum, the Conejo buckwheat or saffron buckwheat, is a species of Eriogonum, or wild buckwheat. It is endemic to the Conejo Valley and surrounding regions in Ventura County, California It grows on open, dry hillsides, often in crags in rock faces.
Eriogonum alpinum is a species of wild buckwheat known by the common name Trinity buckwheat.
Eriogonum cinereum is a species of wild buckwheat known by the common names coastal buckwheat and ashyleaf buckwheat.
Eriogonum 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.
Eriogonum heracleoides is a plant of western North America that has many flowering clusters which are usually cream colored, or off-white. It can usually be found in rocky areas, such as sagebrush deserts and Ponderosa pine forests. Parsnipflower buckwheat is in the genus Eriogonum and the family Polygonaceae, which is a family of plants known as the "knotweed family". It inhabits much of the western part of the United States and southern British Columbia.
Eriogonum 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 meter wide and tall. The woolly leaves are widely lance-shaped and are found along the stems, especially in clusters at the stem tips. The inflorescence is an erect, dense umbel of many tiny bright yellow flowers.
Eriogonum deserticola is a species of wild buckwheat known by the common name Colorado Desert buckwheat.
Eriogonum gracile is a species of wild buckwheat known by the common name slender woolly buckwheat.
Eriogonum 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. It grows in woodland habitat on serpentine soils.
Eriogonum 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. It grows in various types of mountain ridge habitat, such as sagebrush and coniferous woodland.
Eriogonum 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.
Eriogonum 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. It is a perennial herb growing a clump or mat of small woolly oval leaves around a branching woody caudex. The inflorescence arises on a scape and bears a rounded cluster of bright yellow flowers.
Eriogonum sphaerocephalum is a species of wild buckwheat known by the common names rock buckwheat and round-headed desert buckwheat. It is native to the western United States.
Eriogonum tripodum is a rare species of wild buckwheat known by the common name tripod duckwheat. It is endemic to California, where it is known from the Sierra Nevada foothills and northern sections of the Coast Ranges.
Eriogonum callistum is a rare species of wild buckwheat, known by the common name Tehachapi buckwheat.
Eriogonum 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.
Eriogonum 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.
Eriogonum codium is a species of wild buckwheat known by the common names basalt desert buckwheat and Umtanum Desert wild buckwheat. It is endemic to Washington in the United States, where it is known only from Hanford Reach National Monument in Benton County. It was discovered in 1995 during an inventory of the biodiversity of the monument and described to science in 1997.
Eriogonum crosbyae is a species of wild buckwheat known by the common name Crosby's buckwheat. It is native to southcentral Oregon and northwestern Nevada in the United States. Some treatments include plants in Montana and Idaho as members of this species. This plant was first discovered in the Guano Valley in Lake County, Oregon, in 1978 by Bureau of Land Management botanist Virginia Crosby, and it was named for her in 1981.