Eriogonum longifolium var. longifolium

Common names: Long-leaf wild buckwheat
IllustratedEndemic
Synonyms: Eriogonum longifolium subsp. diffusum S. Stokes Eriogonum longifolium var. lindheimeri Engelmann & A. Gray Eriogonum longifolium var. plantagineum Eriogonum vespinum
Treatment appears in FNA Volume 5. Treatment on page 329. Mentioned on page 330.

Plants 3–20 dm, tomentose to nearly glabrous. Leaves: basal leaf blade 0.5–20 × 0.3–3 cm, tomentose abaxially, less so to floccose or nearly glabrous adaxially. Peduncles 0.3–3 cm. Involucres turbinate to campanulate, 4–6 × 2.5–6 mm. Flowers 5–11 mm, including 0.5–2.5 mm stipelike base. Achenes 4–6 mm.


Phenology: Flowering May–Oct.
Habitat: Sandy to gravelly, often calcareous flats, slopes, and outcrops, mixed grassland, creosote bush, and mesquite communities, oak and conifer woodlands
Elevation: 60-1100(-1300) m

Distribution

V5 668-distribution-map.gif

Ark., Kans., La., Mo., N.Mex., Okla., Tex.

Discussion

Variety longifolium is widespread and common in the south-central United States. Its roots were used as food by the Kiowa (P. A. Vestal and R. E. Schultes 1939), and an infusion of the roots was taken by the Comanche for stomach trouble (G. G. Carlson and V. H. Jones 1940).

Selected References

None.

Lower Taxa

None.
James L. Reveal +
Nuttall +
Long-leaf wild buckwheat +
Ark. +, Kans. +, La. +, Mo. +, N.Mex. +, Okla. +  and Tex. +
60-1100(-1300) m +
Sandy to gravelly, often calcareous flats, slopes, and outcrops, mixed grassland, creosote bush, and mesquite communities, oak and conifer woodlands +
Flowering May–Oct. +
Trans. Amer. Philos. Soc., n. s. +
Illustrated +  and Endemic +
Eriogonum longifolium subsp. diffusum +, Eriogonum longifolium var. lindheimeri +, Eriogonum longifolium var. plantagineum +  and Eriogonum vespinum +
Eriogonum longifolium var. longifolium +
Eriogonum longifolium +
variety +