Flower: Large, bright purple, thistle-like flower heads that bloom from midsummer to fall.
Leaves: Deeply lobed, dark green, and slightly hairy leaves.
Stems: Erect, stout, and branching, growing up to 1.5 meters tall.
Growing Environment: Prefers well-drained soils in meadows, pastures, and roadsides.
Growth Habit: A perennial herb that forms loose clumps of tall, flowering stems. It spreads by seed and can form large patches. In situ, greater knapweed often appears as tall, purple-flowered plants scattered throughout meadows or open fields.
