|Other names:||common sowthistle, sow-thistle, common sow-thistle, annual sowthistle, pualele|
Leaves are lobed with toothed edges that are prickly. Milky sap. Flowers are in clusters at ends of stems. Puffball seedhead. Upright habit with long taproot. Images show both annual and perennial types.
Taxonomic data last retrieved March 30, 2012, from the Integrated Taxonomic Information System on-line database, http://www.itis.gov.