Roadside : Arugula ?

By the riverside, opposite London Farm, in Richmond.
Found this one, flowers looking like Arugula in shape,
white instead of creamy yellow. Could this be Arugula ?

 

Garden Rocket (Eruca vesicaria). Edible - makes good pesto.

 

Thanks Mike.
Is it same as Eruca sativa ?

 

Depends on which book you read! As far as I can tell, Eruca vesicaria is the wild plant, and E. sativa the food crop plant derived from it. Kew treat it as a synomym: World Checklist of Vascular Plants

 

Good ! vericaria for wild, sativa for grown.