Rorippa palustris subsp. hispida (Desv.) Jonsell  
Family: Brassicaceae
hispid marsh-cress, hispid yellow-cress
[Brachiolobos hispidus Desv., Radicula hispida (Desv.) Britton, Rorippa hispida (Desv.) Britton, Rorippa islandica var. hispida (Oeder) Borbás, Rorippa palustris subsp. hispida var. elongata (L.) Besser, Rorippa palustris var. hispida Stuckey]
Rorippa palustris subsp. hispida image
from USDA Plants website  
Etymology: Rorippa: an Anglo-Saxon word rorippen whose meaning has been lost
Plants: annual/biennial forb
Rorippa palustris subsp. hispida image
Rorippa palustris subsp. hispida image
Rorippa palustris subsp. hispida image
Rorippa palustris subsp. hispida image