GREAT LETTUCE Lactuca virosa (Asteraceae) Height to 2m
Similar to Prickly Lettuce but taller; note differences in leaves. Stems often tinged purple and exude a milky sap when broken. FLOWERS are borne in heads, 9-11mm across, with yellow florets; carried in open, branched inflorescences (Jul-Sep). FRUITS are maroon with unbanched pappus hairs. LEAVES are dark green and spreading with rounded, clasping bases; lower leaves may have broad lobes. STATUS-Common only in S.