About Cirsium hydrophilum (Greene) Jeps.
Cirsium hydrophilum (Greene) Jeps. can grow up to 2 metres (6.6 ft) tall, with a branching, cobweb-textured stem. Its longest leaves grow near the base of the plant, reaching nearly 90 centimetres (35 in) in length. These leaves are divided into toothed lobes and covered in spines, with particularly dense spines along the petiole. The inflorescence holds one or more flower heads, each growing up to 3 centimetres (1.2 in) long. Each flower head is lined with sticky, twisted, spiny phyllaries, and contains flowers that range in color from pink to purple. Its fruit is an achene measuring 2–4 millimetres (0.079–0.157 in) long, topped with a pappus about 1.5 centimetres (0.59 in) long.