Rorippa curvisiliqua

Western Yellow Cress

Stem with many branches from base, branches ascending. Basal leaves oblong to lance-shaped, entire to deeply pinnately divided, lobes entire or toothed, largest lobe at tip end; upper leaves few, small. Yellow flowers clustered at top of elongating stem, curved seedpods form below. Grows in wet soils at edge of rivers, streams, seeps, below 3000 ft.

  • Rarity: Common
  • Flowering Time: All Spring And Summer
  • Life Cycle: Annual, Biennial
  • Height: 4--20 inches
  • Habitat: Bog/Fen/Wetland, Moist Riverbanks
  • Found In: Siskiyous, East Gorge, West Gorge, Wallowas, Mt. Rainier NP, Olympic NP, Steens, N Cascades NP
  • Native: Yes