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Cruciferae (Mustard Family)

Nasturtium officinale


Plant TypeForb
Flower Colorwhite
Number of Petals4
HabitatSpring and streams. Often growing directly out of the water.
Other NotesThe watercress plant is a good indicator of the cleanliness of water. Watercress will not grown in chemically contaminated water; it is very particular. The presence of a healthy colony of watercress does not, however, reveal biological contamination.