Smooth Sow-Thistle (Sonchus oleraceus)
Short/tall, greyish, hairless. Leaves wavy in outline, the end lobe the largest, with softly spiny edges, clasping the stem with arrow-shaped points. Flowerheads pale yellow, 20-25mm, in a loose cluster; May-November. Fruit a white 'clock' - like Dandelion.

Not many to be found: look on road edges beyond car park.

Spotters' score: 5

ref: p.264/1

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Smooth Sow-Thistle