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Photographer: William S. Alverson
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Family Brassicaceae
Armoracia lacustris (A.Gray) Al-Shehbaz & V.M.Bates
lake cress
Armoracia: Celtic name referring to "saline," favorite habitat of this plant
lacustris: of or pertaining to lakes
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| Status: | Endangered |
| Plant: | perennial, aquatic forb, hairless; stems partly submersed or floating; fibrous roots along the stems |
| Flower: | white, 4-parted, short stalked, petals rounded at the top |
| Fruit: | inflated, oval pod, 1 seed chamber  |
| Leaf: | submersed leaves finely divided into filament-like segments; emergent leaves lance-like to oblong with sharp lobes or toothed edges |
| Habitat: | quiet water, shores, water to 7' deep |
| (Glossary) |
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 Al-Shehbaz @ V.M.Bates&phog=William S. Alverson&spcode=ARMLAC)
