Potamogeton pusillus subsp tenuissimus Mert WDJ Koch Potamogeton pusillus subsp tenuissimus Mert WDJ Koch.
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Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: botany, building, herbarium, history, institution, museum, national, natural, nhb, nmnh, smithsonian, specimens