Oval-leaf Buckwheat -
Eriogonum ovalifolium var. pansum
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State Rank Reason (see State Rank above)
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Details on Status Ranking and Review
Score 0-2 - Small to Large: Population size is imprecisely known but is believed to be >2,000 individuals.
CommentPopulation size in Montana is uncertain. Range Extent
Score 2 - Regional or State Endemic or Small Montana Range: Generally restricted to an area <100,000 sq. miles (equivalent to 2/3 the size of Montana or less) or Montana contributes 50% or more of the species’ range or populations OR limited to 2-3 Sub-basins in Montana. Area of Occupancy
Score 1 - Moderate: Generally occurring in 11-25 Subwatersheds (6th Code HUC’s). Environmental Specificity
Score 1-2 - Moderate to High. Trends
Score 0-2 - Stable to Moderate Declines:
CommentTrends are unknown. Threats
Score 1-2 - Medium to High.
CommentInvasive weeds are a likely threat to some populations. Other potential threats have not been assessed.
Score 0-1 - Low to Moderate Vulnerability.
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Observations in Montana Natural Heritage Program Database
Number of Observations:
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Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap:
(Thorp et al. 1983, Koch et al. 2012, Williams et al. 2014).
Literature Cited Above
Legend: 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. 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 References
Legend: View Online Publication Do you know of a citation we're missing? Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.