Annual Sowthistle

(Sonchus oleraceus L.)

Asteraceae (Aster Family)

▲ young rosette

▲ mature plant

▲ pointed angles of leaf bases (stipules) around stem

▲ ▼ flowers and mature plants

Annual Sowthistle:   (mentioned on pp. 172-173, Weeds of the Great Plains; pp. 160-161, 366-367, Weeds of the Northeast)

 

·        similar in growth habit and appearance to spiny sowthistle, but rosette leaves are not spiny and are more deeply lobed

·        stipule at base of stem leaves is pointed at the base

·        flowers small, yellow, like other sowthistles