Eriogonum gracile

Eriogonum gracile
Apparently Secure
Apparently Secure (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Eriogonum
Species:
E. gracile
Binomial name
Eriogonum gracile
Varieties[2]
  • E. g. var. gracile
  • E. g. var. incultum
Synonyms[3][4]
  • Eriogonum acetoselloides
  • Eriogonum leucocladum

Eriogonum gracile is a species of wild buckwheat known by the common name slender woolly buckwheat.[5]

Description

Eriogonum gracile is an annual herb which is quite variable in appearance. It grows erect to decumbent with a slender, branching stem 10 to 70 centimeters long, sometimes with a thick coat of woolly fibers and sometimes nearly hairless.

The oblong leaves are borne on short petioles, the largest at the base of the plant with blades approaching 6 centimeters long. There are usually leaves along the lower part of the stem. The leaves are woolly in texture, at least on the undersides.

The flowering stem is lined with small clusters of hairless flowers in shades of pink, yellow, or white.

Taxonomy

Eriogonum gracile is a plant in the Eriogonum genus, which is classified in the Polygonaceae family. It was scientifically described in 1844 by George Bentham and has two accepted varieties.[2]

  • Eriogonum gracile var. gracile – Native to California and Baja California[3]
  • Eriogonum gracile var. incultum – Native to California and Baja California[4]

Eriogonum gracile has eight synonyms of the species or one of its two varieties.[2][3][4]

Table of Synonyms
Name Year Rank Synonym of: Notes
Eriogonum acetoselloides Torr. ex Benth. 1856 species var. gracile = het.
Eriogonum gracile var. acetoselloides (Torr. ex Benth.) Torr. & A.Gray 1870 variety var. gracile = het.
Eriogonum gracile var. effusum Torr. & A.Gray 1870 variety var. gracile = het.
Eriogonum gracile var. leucocladon (Benth.) Torr. & A.Gray 1870 variety var. gracile = het.
Eriogonum leucocladon Benth. 1857 species var. gracile = het.
Eriogonum leucocladum Gand. 1906 species var. incultum = het.
Eriogonum roseum var. leucocladon (Benth.) Hoover 1966 variety var. gracile = het.
Eriogonum vimineum subsp. gracile (Benth.) S.Stokes 1936 subspecies E. gracile ≡ hom.
Notes: ≡ homotypic synonym; = heterotypic synonym

Distribution

The annual plant is native to California, where it is widespread across the state except the deserts, and to parts of Baja California in northwestern Mexico.

It grows in many types of habitat, including chaparral, montane, woodland, and grasslands. It is often found on clay soils, and also in sandy places.

References

  1. ↑ NatureServe (31 July 2026). "Eriogonum gracile". NatureServe Explorer. Arlington, Virginia. Retrieved 20 August 2026.
  2. 1 2 3 POWO (2026). "Eriogonum gracile Benth". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 20 August 2026.
  3. 1 2 3 POWO (2026). "Eriogonum gracile var. gracile". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 20 August 2026.
  4. 1 2 3 POWO (2026). "Eriogonum gracile var. incultum Reveal". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 20 August 2026.
  5. ↑ Flora of North America: Eriogonum gracile
  • Wikimedia Commons logo Media related to Eriogonum gracile at Wikimedia Commons
  • Jepson Manual Treatment of Eriogonum gracile
  • Eriogonum gracile — U.C. Photo gallery