Compilation
Eriogonum harfordii

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Name

Identification
Isotype of Eriogonum harfordii Small [family POLYGONACEAE ] Verified by James Lauritz Reveal, Eriogonum latifolium Stokes [family POLYGONACEAE ] (stored under name); Verified by James Lauritz Reveal,
Related name
  • Eriogonum latifolium
  • Eriogonum niveum
  • Eriogonum nudum
  • Eriogonum harfordii
Common name
  • Harford’s wild buckwheat, Flora of North America Vol. 5

Flora

Entry for Eriogonum nudum Douglas ex Bentham var. oblongifolium S. Watson [family POLYGONACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 5,
Names
Eriogonum nudum Douglas ex Bentham var. oblongifolium S. Watson [family POLYGONACEAE], Proc. Amer. Acad. Arts, 12: 264. 1877
Eriogonum affine Bentham [family POLYGONACEAE], in A. P. de Candolle and A. L. P. P. de Candolle, Prodr., 14: 13. 1856
Eriogonum capitatum A. Heller [family POLYGONACEAE]
Eriogonum harfordii Small [family POLYGONACEAE]
Eriogonum latifolium Smith var. affine (Bentham) S. Stokes [family POLYGONACEAE]
Eriogonum latifolium var. harfordii (Small) S. Stokes [family POLYGONACEAE]
Eriogonum latifolium subsp. sulphureum (Greene) S. Stokes [family POLYGONACEAE]
Eriogonum nudum var. sulphureum (Greene) Jepson [family POLYGONACEAE]
Eriogonum sulphureum Greene [family POLYGONACEAE]
Treatment Author(s)
James L. Reveal
Information
Plants 5–10(–18) dm. Flowering stems not fistulose, 2–5(–8) dm, tomentose to floccose. Leaves basal; blade 2–4 × 1.5–2 cm, tomentose abaxially, thinly floccose adaxially, margins plane. Inflorescences cymose, 20–50(–100) × 10–50 cm; branches tomentose to floccose. Involucres 3–6 per cluster, 3–5 mm, tomentose. Flowers 3–4 mm; perianth white to rose or yellow, pubescent. 2n = 40.
Phenology
may (spring), jun-aug (summer), sep-oct (fall)
Altitude range
20–1900 m;
Distribution
USA Calif.USA Nev.USA Oreg.
Discussion
Variety oblongifolium is the widespread and rather common tetraploid phase of the species, being the only expression with pubescent flowering stems. It occurs from southern Oregon south to northern California and western Nevada. The plants vary in flower color. This variety and var. pubiflorum occasionally grow together. In such instances, differentiation between the two based on the presence or absence of tomentum can be arbitrary.

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