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Eriogonum wrightii - Torr. ex Benth.

Common Name Shrubby Buckwheat
Family Polygonaceae
USDA hardiness 5-10
Known Hazards Use mature seed only. Avoid heavy harvest from shrubs that are supporting pollinators and wildlife.
Habitats Rocky habitats from mountains to deserts across the southwestern United States and northwestern Mexico.
Range California to Texas and N. Mexico (to Jalisco).
Edibility Rating    (2 of 5)
Other Uses    (2 of 5)
Weed Potential No
Medicinal Rating    (1 of 5)
Care (info)
Fully Hardy Well drained soil Moist Soil Full sun
Eriogonum wrightii Shrubby Buckwheat


Stan Shebs. Creative Commons Attribution-Share Alike 3.1
Eriogonum wrightii Shrubby Buckwheat
Stan Shebs. Creative Commons Attribution-Share Alike 3.1

 

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Summary

Shrubby buckwheat is one of the most important ecological buckwheats in the Southwest. It has edible seeds, but its greatest value is as a drought-tolerant native shrub and pollinator plant. The flowers are long-lasting, the shrub is tough, and the plant supports a wide range of dryland insects. Shrubby buckwheat, Eriogonum wrightii, belongs to the buckwheat family (Polygonaceae). Common names include bastard sage, shrubby buckwheat, and Wright’s buckwheat. It is a perennial shrub or subshrub of the southwestern United States and northwestern Mexico. It is generally suited to USDA Zones 5–10. Plants vary widely but commonly grow 30–120 cm tall and 60–150 cm wide. Calscape describes it as native to the southwestern United States and northwestern Mexico, where it grows in rocky habitats from mountains to deserts.


Physical Characteristics

 icon of manicon of shrub
Eriogonum wrightii is a SHRUB growing to 1.2 m (4ft) by 1.5 m (5ft in) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 6. The flowers are pollinated by Bees, Insects.
It is noted for attracting wildlife.
Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

UK Hardiness Map US Hardiness Map

Synonyms

Eriogonum trachygonum subsp. wrightii (Torr. ex Benth.) S.Stokes. Eriogonum wrightii subsp. typicum S.Stokes

Plant Habitats

Edible Uses

The edible part is the seed. It is a minor seed food rather than a major grain [2-3]. Edible Uses & Rating: Shrubby buckwheat ranks as a modest food plant but a high-value habitat plant. Its seeds can be used, but shrubby buckwheats often produce smaller or harder-to-process seed yields than herbaceous annual species [2-3]. Taste, Processing & Kitchen Notes: Seeds should be collected dry, cleaned, toasted, and ground or cooked. Astringency or bitterness may occur, so mixing with other grains is practical. Seasonality (Phenology): It typically flowers in summer and fall. Regional native plant sources note summer-to-fall bloom and strong pollinator attraction. Safety & Cautions (Food Use): Use mature seed only. Avoid heavy harvesting from shrubs that support pollinators and wildlife [2-3]. Harvest & Processing Workflow: Collect dry flower heads after seed set, dry further, rub out the achenes, winnow, and toast or grind. Cultivar/Selection Notes: Shrubby buckwheat is used in native landscaping, and selection is usually for compact form, flower density, drought tolerance, and pollinator value rather than seed use. Look-Alikes & Confusion Risks: It resembles other shrubby Eriogonum species. Growth form, rocky habitat, flower clusters, and regional range are important. Traditional/Indigenous Use Summary: Shrubby buckwheat fits within the wider use of western buckwheat seeds as dryland foods. Its food use is secondary to its ecological prominence [2-3].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


Eriogonum wrightii, commonly known as Wright buckwheat or bastard sage, has a history of traditional and ceremonial medicinal uses, particularly among Indigenous North American tribes like the Navajo and Zuni.

References   More on Medicinal Uses

Other Uses

Shrubby buckwheat is used in native landscaping, and selection is usually for compact form, flower density, drought tolerance, and pollinator value. Excellent for xeric native gardens, slopes, and pollinator plantings. Ecology & Wildlife: One of the better dryland shrubs for pollinator support, seed production, and habitat structure in southwestern landscapes.

Special Uses

References   More on Other Uses

Cultivation details

Shrubby buckwheat is a valuable dryland shrub with edible seeds but outstanding ecological value. It is better planted and protected than it is when heavily harvested. Growing Conditions: Full sun, rocky slopes, dry soils, excellent drainage, and low water. Habitat & Range: It grows in rocky habitats from mountains to deserts across the southwestern United States and northwestern Mexico. Size & Landscape Performance: Excellent for xeric native gardens, slopes, and pollinator plantings. Cultivation (Horticulture): Grow in lean, well-drained soil with minimal irrigation once established. Pests & Problems: Overwatering and poor drainage are the main problems. Identification & Habit: A shrub or subshrub buckwheat with simple leaves, branching flower clusters, and persistent dry inflorescences. Pollinators: Highly attractive to bees, butterflies, flies, and other pollinating insects. Shrubby buckwheat, Eriogonum wrightii, belongs to the buckwheat family (Polygonaceae). Common names include bastard sage, shrubby buckwheat, and Wright’s buckwheat. It is a perennial shrub or subshrub of the southwestern United States and northwestern Mexico. It is generally suited to USDA Zones 5–10. Plants vary widely but commonly grow 30–120 cm tall and 60–150 cm wide. Calscape describes it as native to the southwestern United States and northwestern Mexico, where it grows in rocky habitats from mountains to deserts.

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Plant Propagation

Seed, and sometimes by cuttings

Other Names

If available other names are mentioned here

Wright buckwheat. Bastard-sage

Native Range

US. USA. Arizona, California, Mexico Northeast, Mexico Northwest, Mexico Southwest, Nevada, New Mexico, Texas, Utah.

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it's worth checking.

Low.

Conservation Status

IUCN Red List of Threatened Plants Status : Not listed.

IUCN Red List

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Eriogonum alatumWinged BuckwheatPerennial0.8 4-9  LMNDM221
Eriogonum atrorubensRed Wild Buckwheat, Red buckwheatPerennial1.0 0-0  LMNDM10 
Eriogonum baileyiBailey’s BuckwheatAnnual0.5 6-10 FLMNDM221
Eriogonum cernuumNodding BuckwheatAnnual0.6 5-10 FLMNDM221
Eriogonum corymbosumCrispleaf BuckwheatShrub0.3 3-9 SLMNDM123
Eriogonum davidsoniiDavidson’s BuckwheatAnnual0.4 7-10 FLMNDM211
Eriogonum inflatumDesert trumpetPerennial0.6 8-11 FLMNDM211
Eriogonum jamesiiAntelope Sage, James' buckwheatPerennial0.3 4-8  LMNDM02 
Eriogonum latifoliumSeaside BuckwheatPerennial0.6 7-10  LMNDM21 
Eriogonum longifoliumLongleaf BuckwheatPerennial1.0 -  LMNDM11 
Eriogonum microthecumSlender Buckwheat, Alpine slender buckwheat, San Bernardino buckwheat, Johnston's buckwheat, PanaminShrub0.3 5-9  LMNDM11 
Eriogonum plumatellaYucca BuckwheatShrub1.0 8-10 MLMNDM222
Eriogonum pusillumYellow Turbans, Puny buckwheat.Annual0.2 7-10 FLMNDM202
Eriogonum racemosumRedroot BuckwheatPerennial0.6 5-8 FLMNDM222
Eriogonum rotundifoliumRoundleaf BuckwheatPerennial0.3 5-9 FLMNDM122

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Author

Torr. ex Benth.

Botanical References

Links / References

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Subject : Eriogonum wrightii  
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