About Echinops exaltatus Schrad.
Echinops exaltatus Schrad., commonly known as Russian globe thistle, is the largest species among all globe thistles. It is a branching perennial herb that can grow up to 150 cm, or 60 inches (5 feet), tall. A single plant can produce multiple flower heads. Each flower head has a nearly spherical arrangement of disc florets, which are white or pale blue, and does not produce any ray florets.