Curvepod yellowcress (Rorippa curvisiliqua) is distinguished by its elongate curved fruit (> 5 times as long as wide), prominently pinnatifid leaves, and low habit.  Locally it is primarily known from the mudflats on the Mores Creek branch of Lucky Peak Reservoir near Robie Creek Park, where it can form swathes of bright yellow in early spring before the water rises.