Eriogonum cernuum

Eriogonum cernuum
Secure
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. cernuum
Binomial name
Eriogonum cernuum

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.

Taxonomy

In 1848 Thomas Nuttall scientifically described a new species in Eriogonum, which he named Eriogonum cernuum. Together with its genus it is classified in the Polygonaceae family and has no accepted subspecies or varieties, but it has eight that are synonyms.[2]

Table of Synonyms
Name Year Rank Notes
Eriogonum cernuum subsp. acutangulum S.Stokes 1936 subspecies = het.
Eriogonum cernuum var. psammophilum S.L.Welsh 2003 variety = het.
Eriogonum cernuum subsp. tenue (Torr. & A.Gray) S.Stokes 1936 subspecies = het.
Eriogonum cernuum var. tenue Torr. & A.Gray 1870 variety = het.
Eriogonum cernuum subsp. typicum S.Stokes 1936 subspecies ≡ hom., not validly publ.
Eriogonum cernuum var. umbraticum Eastw. 1896 variety = het.
Eriogonum cernuum subsp. viminale S.Stokes 1936 subspecies = het.
Eriogonum cernuum var. viminale (S.Stokes) Reveal 1968 variety = het.
Notes: ≡ homotypic synonym; = heterotypic synonym

References

  1. ↑ NatureServe (31 July 2026). "Eriogonum cernuum". NatureServe Explorer. Arlington, Virginia. Retrieved 14 August 2026.
  2. ↑ "Eriogonum cernuum Nutt". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 14 August 2026.


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