Barbarea orthoceras

American Winter Cress

Stem erect, stiff, branched. Basal leaves pinnately divided, usually into 5(–7) lobes, the end lobe egg-shaped, toothed or entire; stem leaves become less lobed, smaller upward, often clasping. Flowers small in clusters at top of expanding stem, with 4 yellow petals. Seedpods, ascending, consist of 1–2 in. thin cylinders on short stalks. Grows in wet meadows, rocks, along waterways; found on beaches to 10,000 ft.

  • Rarity: Common
  • Flowering Time: Mid-Late Spring
  • Life Cycle: Biennial, Perennial
  • Height: 1--2 feet
  • Habitat: Meadow, Vernal Wet
  • Found In: Olympic Np, Mt. Rainier Np, Steens, Siskiyous, West Gorge, N Cascades Np
  • Native: Yes