Jointed Charlock, Wild Radish
Raphanus raphanistrum

Jointed charlock as seen growing on riprap at Barview Jetty County Park on the northern Oregon coast.......May 22, 2009.
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Close-ups of the flowers of jointed charlock as seen growing on riprap at Barview Jetty County Park on the northern Oregon coast.........May 22, 2009.
Paul Slichter