You searched for: Collection University of Michigan Herbarium Catalog Collection Remove constraint Collection: University of Michigan Herbarium Catalog Collection Place Cheboygan Remove constraint Place: Cheboygan Place Douglas Lake, along foss and stream near Smith's Bog Remove constraint Place: Douglas Lake, along foss and stream near Smith's Bog Place Michigan Remove constraint Place: Michigan Place North America Remove constraint Place: North America Topic Alismatales Remove constraint Topic: Alismatales Topic Potamogeton Remove constraint Topic: Potamogeton Topic Potamogetonaceae Remove constraint Topic: Potamogetonaceae