| Eriogonum thymoides | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Eriogonum |
| Species: | E. thymoides |
| Binomial name | |
| Eriogonum thymoides | |
Eriogonum thymoides is a species of flowering plant in the buckwheat family known by the common name thymeleaf wild buckwheat, or simply thymeleaf buckwheat. [1]
Eriogonum thymoides is an intricately branched subshrub with foliage up to 15 centimetres (5.9 in) tall and 40 centimetres (16 in) wide and covered in short woolly or silky hairs. Younger plants usually have a very neat compact appearance, and older plants may have a gnarled woody base and may be somewhat taller and may sprawl extensively. The hairy leaves are linear to spatulate and flat or rolled under at the edges and up to 1.0 cm in length. It produces erect flowering stems that project up to 12 centimetres (4.7 in) above the foliage. Each flower stem has a whorl of small bract-like leaves near the midpoint and is topped by a head-like inflorescence up to 2 cm wide. The flower is up to 1 cm long and is variable in color, including yellow, white and rosy red, yellow and rosy red, and white. [2] In bud, the flowers are often deep rosy red. The bases of the petals and sepals are covered with long hairs. [2] The species is polygamodioecious, meaning that some of the plants have both male and bisexual flowers, while others have both female and bisexual flowers. [3] Eriogonum thymoides can be distinguished from the similar to Eriogonum douglasii by its (usually) smaller leaf size, and by its involucre lobes, which are erect and appressed in E. thymoides, and spreading to reflexed in E. douglasii (the involucre is the bract that envelopes the base of the flower head). The leaves of E. douglasii are also often flatter, wider, and more silvery in color. [1]
Eriogonum thymoides is native to dry regions of Idaho, Oregon, and Washington in the Pacific Northwest of the United States, where there are three main population groups. [3] It flowers in mid-spring. [2] This plant grows in sagebrush, ponderosa pine forest openings, and mountain ridges, often on very shallow rocky soil above basalt. Though it grows in a restricted region it is locally abundant. [1]
According to one source, this plant has "special value to native bees." [4]
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 fasciculatum is a species of wild buckwheat known by the common names California buckwheat and flat-topped buckwheat. Characterized by small, white and pink flower clusters that give off a cottony effect, this species grows variably from a patchy mat to a wide shrub, with the flowers turning a rusty color after blooming. This plant is of great benefit across its various habitats, providing an important food resource for a diversity of insect and mammal species. It also provides numerous ecosystem services for humans, including erosion control, post-fire mitigation, increases in crop yields when planted in hedgerows, and high habitat restoration value.
Erigeron linearis is a species of flowering plant in the family Asteraceae known by the common name desert yellow fleabane or narrow leaved fleabane. It is native to western North America.
Eriogonum caespitosum is a species of wild buckwheat known by the common name matted buckwheat, mat buckwheat, or cushion desert buckwheat. It is a common perennial plant native to the western United States from California to Montana, especially the Great Basin. Flowering early in the summer, it is also cultivated as a rock garden plant.
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, including the sagebrush steppe and alpine regions.
Eriogonum 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. It flowers early in the summer.
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, including the sagebrush steppe and alpine areas. It is an extremely variable plant and hard to identify because individuals can look very different from one another. Also, there are many varieties. It may be a perennial herb blooming by summer with stems 10 centimeters tall and two to six clusters of flowers, with a whorl of leaves below the stems, 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.
Eriogonum flavum is a species of wild buckwheat.
Chaenactis douglasii is a North American species of flowering plant in the daisy family known by the common name Douglas' dustymaiden.
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 brachyanthum is a species of wild buckwheat that is commonly known as 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 plant grows in sandy habitats such as desert flats and sagebrush. It also grows in pinyon-juniper and montane conifer woodlands. It is an annual herb that grows 30 to 40 centimeters tall. Leaves are located at the base of the stem, woolly, and oval or rounded in shape. The top of the stem is occupied by a branching inflorescence bearing many widely spaced clusters of flowers. Each individual flower is about a millimeter wide and light yellow in color. Flowers bloom from April to November.
Eriogonum 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 a thin, branching flowering stem. The rounded, woolly leaves are one or two centimeters wide and are mainly located about the base of the stem. The inflorescence is evenly lined with hanging involucres of flowers. The individual flowers are less than 2 millimeters wide and white to pink-tinged in color.
Eriogonum siskiyouense is a rare species of wild buckwheat known by the common name Siskiyou buckwheat.
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.
Lithospermum ruderale is a species of flowering plant in the borage family known by the common name western stoneseed or lemonweed. It is native to western Canada and the western United States, where it can be found in many types of habitat. A perennial herb growing from a taproot and woody caudex, it is covered with fine, more or less upright, hairs, especially on the stems. It produces a cluster of erect leafy stems ranging from 20 to 50 centimetres centimeters in height. The stems support lance-shaped leaves ranging from 2.5–10 cm (1–4 in) in length. Bunches of flowers with leaf-like bracts appear toward the top of the stem amongst the leaves. The corolla is fused at the base with five lobes which are light yellow, often slightly greenish, and about a centimeter long and wide. The style is short. The fruit consists of one or two, sometimes four, clustered glossy grey nutlets, 3.5 to 6, sometimes as much as 8 mm long.
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.
Artemisia papposa is a species of flowering plant in the aster family known by the common names Owyhee sage, Owyhee sagebrush, and fuzzy sagebrush. It is native to the Snake River Plain and surrounding areas in the northwestern United States, occurring in southern Idaho, eastern Oregon, and northern Nevada.
Eriogonum niveum is a species of flowering plant in the buckwheat family known by the common name snow buckwheat. It is native to the Pacific Northwest of North America, where it occurs in British Columbia, Washington, Oregon, and Idaho. It flowers late in the summer.
Erigeron poliospermus is a species of flowering plant in the family Asteraceae known by the common names gray-seeded fleabane, purple cushion fleabane, and hairy-seed fleabane. Native to western North America, it is mainly found to the east of the Cascade Range in Washington, Oregon, and Idaho.
Eriogonum preclarum, known commonly as the Puerto Nuevo buckwheat, is a very rare species of perennial wild buckwheat in the family Polygonaceae. It is endemic to the Vizcaíno Peninsula in Baja California Sur, occurring on ultramafic substrates.
