Sonchus oleraceus L.

Annual Sowthistle

Supported by

Annual herb to 1.2��2 m high. Stems hollow. Leaves variable; basal leaves 5��25 cm long, lanceolate, base not stem clasping; stem leaves 6��35 cm long, lanceolate, usually lobed and with pointed stem clasping basal lobes. Flowerhead made up of heads in flat-topped panicles. Seeds brown. source: Weeds Australia

External resources:

Record a Sighting


Occurence records map



Biodiversity Heritage Library

Content and maps have been accessed from Atlas of Living Australia ( and Birdlife Australia (