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Photographer: Paul Skawinski
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Family Najadaceae
Najas marina L.
alkaline water-nymph, spiny naiad
Najas: from Greek Naias, a water nymph
marina: near sea
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| Status: | Introduced - naturalized |
| Plant: | submerged annual, dioecious aquatic; stems very long, many branches, 0.5-4mm thick, often prickly; slight rootstock |
| Flower: | tiny, from leaf axis |
| Fruit: | red-brown, paper-thin walls, irregular pits |
| Leaf: | very narrow, to 2"L x 2W, coarsely toothed edges, lower side of mid-vein prickly |
| Habitat: | wet; clear 3' or more deep-water alkaline water |
| (Glossary) |
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