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Montana Field Guide

Montana Field Guides

Pyrola-leaved Buckwheat - Eriogonum pyrolifolium

Native Species

Global Rank: G4
State Rank: S3S4

Agency Status


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General Description
Perennial with a simple or short-branched caudex and a stout taproot. Flowering stems ascending, glabrous to weakly tomentose, 3–15 cm, clothed in old leaf bases below. Leaves basal, long-petiolate; the blade 1–4 cm long, elliptic, white- to brown-tomentose below, nearly glabrous above. Inflorescence loosely capitate, bracts 2, leaf-like; involucres appearing clustered, sparsely glandular and hairy, 4–5 mm long with 4 to 5 erect lobes. Flowers 3–6 mm long, campanulate with a stipe-like base <1 mm long, white to rose; tepals glandular-villous, similar in shape; stamens exserted. Achenes 4–5 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Ravalli and Mineral counties. BC south to CA, ID and MT (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Subalpine and alpine rocky ridges and talus slopes.

The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus bifarius, Bombus centralis, Bombus flavifrons, Bombus huntii, Bombus melanopygus, Bombus mixtus, Bombus ternarius, Bombus occidentalis, Bombus insularis, and Bombus flavidus (Thorp et al. 1983, Koch et al. 2012, Williams et al. 2014).

  • Literature Cited AboveLegend:   View Online Publication
    • Koch, J., J. Strange, and P. Williams. 2012. Bumble bees of the western United States. Washington, DC: USDA Forest Service, Pollinator Partnership. 143 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
    • Williams, P., R. Thorp, L. Richardson, and S. Colla. 2014. Bumble Bees of North America. Princeton, NJ: Princeton University Press. 208 p.
  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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Citation for data on this website:
Pyrola-leaved Buckwheat — Eriogonum pyrolifolium.  Montana Field Guide.  .  Retrieved on , from