Magnusson, M., Hambäck, P. Svensk Botanisk Tidskrift, 2005 (Vol. 99) (No. 1) 23-30 Cicerbita macrophylla - a threat to native plants?
4species of Cicerbita, are recorded in Britain. These include the native Alpine Sow-thistle (C. alpina) and the introduced Pontic Blue-sow-thistle (C. bourgaei), Common Blue-sow-thistle (C. macrophylla) and Hairless Blue-sow-thistle (C. plumieri).
Alpine Sow-thistle (C. alpina) is protected under Schedule 8 of the Wildlife and Countryside Act, 1981.
Three dipterous miners, the agromyzids Chromatomyia 'atricornis', Liriomyza strigata and Ophiomyia beckeri, are recorded on Cicerbita in Britain