Yellow watercress [Rorippa islandica]
5: Yellow water cress. Young. Alternate feather compound leaves. Some red clover leaves in lower left. (Prospect Park, May 22, 2011)
6: Yellow water cress. More mature with flowers starting. (Prospect Park, May 22, 2011)
7: Yellow water cress. Flower closeup. (Prospect Park, May 22, 2011)
1: Yellow watercress (Central Park, Jun 10, 2000)
3: Yellow watercress closeup. (Prospect Park, Jul 1, 2006)
4: Yellow watercress patch. (Prospect Park, Jul 1, 2006)
2: Yellow watercress (Prospect Park, Sep 2, 2000)
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