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Photographer: Emmet J. Judziewicz
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Family Brassicaceae
Armoracia rusticana P.Gaertn., B.Mey. & Scherb.
horseradish
Armoracia: Celtic name referring to "saline," favorite habitat of this plant
rusticana: rural or from the country, rustic
Hazardous 
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| Status: | Introduced - escaped |
| Plant: | erect, perennial, 2'-3' tall forb, hairless; roots thick |
| Flower: | white, 4-parted, 1/4"-1/2" wide, petals rounded at the top; inflorescence of several clusters (racemes) of stalked flowers; blooms May-July |
| Fruit: | inflated, oval pod with 2 seed chambers  |
| Leaf: | large, lower leaves on long stalks, oblong with heart-shaped bases; upper leaves smaller, with short or no stalks |
| Habitat: | moist; gardens, disturbed areas |
| (Glossary) |
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