U.S.A., Wyoming. PARK COUNTY Rocky Mts., NW Wyoming, Shoshone National Forest, Beartooth Plateau, Sawtooth Lake, W shore, streams falling into the lake, granite boulders lining the streams, on sandy substrate over boulders, submerged and half-submerged, locally very abundant. ) . @ Herbarium of the @Botanical Garden-Institute (VBGI)
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Det. Vadim Bakalin, March 2014