Under favorable conditions, roots grow deeper and fewer rhizomes develop. Petals 5, separate, 8-12 mm long , typically dotted with black glands along the margins. Stamens yellow, numerous . Styles 3, 3-10 mm long . Plants typically do not flower the first year.
Aerial growth dies back during the cold season.
In forested or wildland areas, dry flower stems can contribute to fire hazard risks. Grows best in open, disturbed sites and on slightly acidic to neutral soils. Does not tolerate saturated soils. Seed and capsules disperse with water and adhere to machinery, tires, shoes, clothing, and feet, fur, or feathers of animals. Seeds are hard-coated, and those consumed by animals remain intact and viable.