Creeping Fieldcress
Rorippa sylvestris
Washington State Classification
Monitor List
This plant is on the monitor list, it is not a listed noxious weed in Washington.
Quick Reference
Identification
Growth Habit
Creeping fieldcress is a perennial plant that is hairless or sparsely hairy.
Leaves
Basal leaves similar to stem leaves. Stem leaves with petioles, deeply lobed (3-6 lobes on each side), the terminal lobe is often broader than the other lobes. Leaf base typically not auriculate (with lobes). Leaf margins typically with toothing.
Flowers
Flowers in elongated racemes of yellow flowers. Flowers have four petals, six stamens and are around 1/3 inch in diameter.
Fruit & Seeds
Each silique (seed pod) is straight, ending in a short beak. Seeds, if produced, reddish brown, and ovoid.
Impact
This plant is on the monitor list, it is not a listed noxious weed in Washington. Please contact Sofia Sherman to report locations or for more information.
Ecology & Spread
Habitat
Plants grow in ditches, damp areas, pond and lake edges, sandy beaches, disturbed areas, wet roadsides, meadows, fields, and gardens. Herbarium records document Rorippa sylvestris in parts of Washington, Oregon, Idaho, Montana and Canada.
Spread Mechanisms
Reproduction
Seed, and vegetatively with creeping stolons
"