Water-cress: Nasturtium officinale (Synonym: Rorippa nasturtium-aquaticum)
Curvepod Yellowcress, Curvepod Yellow-cress, Prostrate Yellow-cress, Western Yellowcress, Western Yellow-cress: Rorippa curvisiliqua (Synonyms: Rorippa curvisiliqua var. curvisiliqua, Rorippa curvisiliqua var. occidentalis, Rorippa curvisiliqua var. procumbens)
Bog Yellowcress, Pacific Yellow-cress: Rorippa palustris ssp. palustris (Synonyms: Rorippa palustris ssp. fernaldiana, Rorippa palustris var. fernaldiana, Rorippa palustris ssp. occidentalis, Rorippa palustris var. occidentalis)
Spreading Yellowcress, Spreading Yellow-cress: Rorippa sinuata
Lyrate-leaf Yellow-cress, Modoc Yellow-cress: Rorippa tenerrima