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Photographer: Paul Skawinski
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Family Potamogetonaceae
Potamogeton zosteriformis Fernald
flat-stem pondweed, flat-stemmed pondweed
Potamogeton: from Greek potamos, "a river," and geiton, "a neighbor," because of the habitat
zosteriformis: like Zostera
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| Status: | Native |
| Plant: | perennial, submersed aquatic; stems flattened, angled, freely branching; slight rhizomes |
| Flower: | green-brown, small; inflorescence cylindrical spike, spike above the water |
| Fruit: | oval, dry seed with a sharp, narrow dorsal ridge |
| Leaf: | alternate, entire, with prominent midvein; stiff, linear, many fine parallel veins, none floating; firm stipules free in leaf axil; |
| Habitat: | water from shallow to >12' deep; in soft sediment soil |
| (Glossary) |
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