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 nudum is a perennial shrub of the wild buckwheat genus which is known by the common name naked buckwheat or nude buckwheat.
Eriogonum fasciculatum is a species of wild buckwheat known by the common names California buckwheat and eastern Mojave buckwheat.
Eriogonum alpinum is a species of wild buckwheat known by the common name Trinity buckwheat.
Eriogonum 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.
Eriogonum giganteum, with the common name St. Catherine's lace, is a species of wild buckwheat in Southern California.
Eriogonum 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.
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 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. This is an extremely variable plant and hard to identify because individuals can look very different from one another. Also, there are a great many varieties. It may be a perennial herb forming a small clump with flowers to 10 centimeters tall, or a sprawling shrub approaching two meters high and wide. The leaves are usually woolly and low on the plant, and the flowers come in many colors from white to bright yellow to purple. Native American groups utilized parts of this plant for a number of medicinal uses.
Eriogonum 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. Leaves are located mainly at the base of the plant and are wavy along the edges and up to 10 centimeters long.
Eriogonum 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 Junipero Serra Peak. It grows in woodland and chaparral habitat on sandstone soils. This is a small clumpy shrub or subshrub growing up to about 30 centimeters tall and wide. The reddish-green, woolly leaves are oval in shape and curled under at the edges. They are up to 2 centimeters long. The inflorescence is a cluster of flowers up to 2 or 3 centimeters wide, each individual flower a few millimeters wide and dull yellowish to pinkish in color.
Eriogonum 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 sandy to rocky habitat in the forests and woodlands of these desert mountains. It is an annual herb producing a spreading, glandular, reddish green stem up to about 25 centimeters tall. The rounded, woolly leaves are up to about 2.5 centimeters long and are located at the base of the stem. The scattered inflorescences are small clusters of tiny flowers which are white with reddish stripes, aging to solid red, or sometimes yellow. The plant is under protection in Death Valley National Park.
Eriogonum 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. The plant grows in the desert scrub on the slopes of the Panamint, Black, and Funeral Mountains.
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 kennedyi is a species of wild buckwheat known by the common name Kennedy's buckwheat.
Eriogonum prattenianum is a species of wild buckwheat known by the common name Nevada City buckwheat.
Eriogonum spergulinum is a species of wild buckwheat known by the common name spurry buckwheat.
The Bonny Doon Ecological Reserve is a nature preserve of 552 acres (2.23 km2) in the Santa Cruz Mountains of California, United States. The reserve protects several rare and endangered plant and animal species within an area known as the Santa Cruz Sandhills, an ancient seabed containing fossilized marine animals.
Eriogonum callistum is a rare species of wild buckwheat, known by the common name Tehachapi buckwheat.
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.
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