Willow Dock - Rumex salicifolius var. triangulivalvis
Rumex salicifolius var. mexicanus, Rumex triangulivalvis
MNPS Threat Rank
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Across much of North America apart from TX and OK through the Southeastern states (Kartesz in prep. 2012).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)