Potamogeton diversifolius Raf.
Family: Potamogetonaceae
common snail-seed pondweed, water-thread pondweed
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Robert W. Freckmann  
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Brenton Butterfield  
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University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)  
Etymology: Potamogeton: from Greek potamos, "a river," and geiton, "a neighbor," because of the habitat
Plants: perennial, submersed aquatic; stems freely branching; slender rhizomes
Leaves: alternate, entire, linear, 1 prominent midvein, 2 faint side veins; elliptical floating leaves long; submersed - fine, 0.2mm wide
Flowers: green-brown, small; inflorescence spike
Fruits: dry seed with a flat, round, tiny beak, fruit spikes globular from submersed leaf axils; cylindrical from floating leaves
Habitat: water < 7'; in soft sediment soil
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Brenton Butterfield  
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Brenton Butterfield  
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Brenton Butterfield  
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