RANGE: Throughout the United States.
APPEARANCE: Bright, shiny green, lance-shaped leaves appear in spring. In summer and fall, the puckered wavy edges of the leaves are tinted reddish purple. Small greenish flowers appear on a tall, narrow spike coming from the center of the plant.
GROWTH: Growing from a large, brownish taproot, curly dock is a perennial weed that grows most actively when grass is suffering from the stress of hot, dry weather.