Brassica rapa
Brassicaceae
Field Mustard
Erect stems, many branches, upper stem leaves clasping. Plant covered with whitish powder. Leaves greenish, pinnately divided, 2–4 side lobes with rounded tips, larger lobe at end. Flowers in many small clusters atop stems, yellow with 4 petals. Seedpods point outward or upward; pod to 3 in. long with narrow beak at top. Grows in orchards, grain and other fields, at low and mid elevations.
- Rarity: Common
- Flowering Time: Early Spring, Mid Spring, Late Spring
- Flower Form: Petals 4
- Life Cycle: Annual, Biennial
- Height: 2–3 feet
- Habitat: Disturbed, Meadow
- Found In: Mt. Rainier NP, N Cascades NP, Olympic NP, Siskiyous, Wallowas
- Native: No
- Latin Synonyms: Brassica campestris
