Story: Weeds of agriculture

Nodding thistles (Carduus nutans) can grow to 1.6 metres high, and are found in pastures and among crops. Their distinctive flower heads are bright crimson, larger than those of Scotch thistles, and they nod in the wind. Flowers are about 4 centimetres in diameter and appear from November to February. They provide nectar for a high-quality honey. Most seeds fall within a few metres of the parent plant.