Stems erect, in dense colonies. Leaves sessile, green on both sides, lance-shaped, lobed, with short spines. Flower heads small, red to pink or lavender. Cup 3/4 in. high. Dioecious. Grows in fields, open areas, disturbed soils, at low to mid elevations. A noxious weed sometimes found in great abundance.
- Rarity: Common
- Flowering Time: All Summer
- Life Cycle: Perennial
- Height: 20--40 inches
- Habitat: Meadow, West-Side Forest, East-Side Forest, Disturbed, Coastal
- Found In: Olympic Np, Mt. Rainier Np, N Cascades Np
- Native: No