Brassicaceae
Rorippa palustris

Marsh Yellowcress

Single erect stem, unbranched or branched from base. Leaves pointing upward from short petioles or sessile, toothed or deeply lobed. Yellow flowers atop branches; petals spoon-shaped. Erect seedpods oblong to nearly round on spreading stalks. Grows in wet spots below 6500 ft. throughout North America. Palustris, meaning "wet places," refers to where it grows.

  • Rarity: Common
  • Flowering Time: Early Summer
  • Life Cycle: Annual, Biennial, Perennial
  • Height: 16--40 inches
  • Habitat: Meadow, Bog/Fen/Wetland
  • Found In: Siskiyous, Olympic NP, Steens, West Gorge, N Cascades NP
  • Native: Yes