Specimen data from the Consortium of California Herbaria
Lactuca serriola
Lactuca serriolaL.
Family: Asteraceae
Prickly Lettuce
[Lactuca scariola L., moreLactuca serriola f. integrifolia (S. F. Gray) S. D. Prince & R. N. Carter, Lactuca serriola var. integra Farw., Lactuca serriola var. serriola]