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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
Population Size
Score 0-2 - Small to Large: Population size is imprecisely known but is believed to be >2,000 individuals.
Comment Population 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:
Comment Trends are unknown.
Threats
Score 1-2 - Medium to High.
Comment Invasive weeds are a likely threat to some populations. Other potential threats have not been assessed.
Intrinsic Vulnerability
Score 0-1 - Low to Moderate Vulnerability.
General Description
We do not yet have descriptive information on this species. Please try the buttons above to search for information from other sources.
Observations in Montana Natural Heritage Program Database
Number of Observations: 3
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Ecology
POLLINATORS 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).
References
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