Native to North America, and found from Texas north to Illinois and east to nearly every state in eastern U.S., as well as south into Mexico.
A perennial plant with foliage that dies back in winter in cold climates. Reproduction is from seeds. Found in many habitats along roadsides and in disturbed sites, as well as a noxious weed in turf and landscape.
Leaves for a wide basal rosette with the flower stalk arising from the middle of it and growing to well over 2 feet in height. Leaves are deeply wavy along their margins, sometimes even to forming lobes, and have long, thick stalks. The center area of the leaf often will be colored a deep purple-brown. Flowers occur along the thick stalk as bright blue and with the bases of the petals fused to form a deep tube. The calyx surrounding the base of each flower has numerous sharply pointed tips that assume a deep red color.
Characteristicts Important to Control:
A systemic herbicide will be the most effective at killing this perennial plant when it grows where it is not wanted.