Photo: Sonchus asper.

Flower, flowerbuds, and leaf. Annala, Helsinki, Finland. Wild. 2004-09-11.
Sonchus asper (L.) Hill Engl.: prickly sow-thistle, annual sow-thistle, spiny annual sow-thistle, spiny-leaved sow thistle. Deu.: Rauhe Gänsedistel. Suom.: otavalvatti. Sven.: svinmolke, svinmjölktistel, svintistel, vanlig svinmolke. Fran.: laiteron rude, chaudronet, chaudronnet, laiteron, laiteron âpre, laiteron épineux. Bot. syn.: Sonchus nymanii Tineo & Guss.
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Photo: Sonchus asper.