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Eriogonum cedrorum
The Cedars buckwheat is a rare, mat-forming perennial from one serpentine canyon in Sonoma County, California, and is not commonly grown. Its key requirement is well-drained, mineral-rich soil with good sun, as it is adapted to harsh serpentine conditions.
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.
The Cedars is known for its botanical riches, including the endemic plant species Cedars fairy lantern and serpentine fleabane. The habitat is a serpentine canyon surrounded by non-serpentine terrain and many rare serpentine-endemic plants are isolated within. Much of the flora is also adapted to alkaline conditions, growing among seeps of mineral-rich waters that can have a pH up to 11. It can be found in three locations with an estimated 1500 to 2000 individuals in existence.
Abert's buckwheat · Winged buckwheat · Shale barren buckwheat · Trinity buckwheat · Mono buckwheat · Anglestem buckwheat · San Jacinto buckwheat · Ione buckwheat · Santa Cruz Island buckwheat · Clay buckwheat · Sulphur Hot Springs buckwheat · Bailey's buckwheat
Text excerpted from the Wikipedia article Eriogonum cedrorum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
