Common Thistle (Cirsium vulgare) - Botanical Illustration & Identification Guide #1850423 (License: Personal Use)

This high-resolution botanical illustration depicts three specimens of Cirsium vulgare, commonly known as the spear thistle or bull thistle, in various stages of bloom. The image highlights the dense, pink-purple composite flower heads surrounded by stiff, spine-tipped bracts, and the deeply incised, dark green leaves with prominent marginal spines. The clean white background emphasizes morphological details critical for plant identification and educational use.

Used in botanical field guides, educational websites, horticultural databases, and weed management resources; serves users seeking accurate visual identification, taxonomy details, or ecological information about invasive or native thistles.