 Photo ©
Carl Farmer |
Quite frequent on the shore just above the high tide line. Is also frequent inland in much of the country, but I don't recall seeing it away from the coast in our area. Flowerhead diameter c 4-5 cm. Plants up to 1.5 metres tall. ID: Distinguished from other sow-thistles by large flower size and patch-forming habit due to spreading by underground rhizomes which put up a succession of shoots. Other features: Much taller and more robust than other sow-thistles. Involucres and their stalks often densely covered with yellow hairs (ssp arvensis) but sometimes hairless (ssp uliginosus). |
