Lactuca biennis (Moench) Fernald. Tall Blue Lettuce, Blue Wood Lettuce. Phen: Aug-Nov. Hab: Pastures, roadsides, forest edges, thickets. Dist: NL (Labrador) and AK south to NC, TN, IA, CO, UT, and CA.
Origin/Endemic status: Native
Synonymy: = C, FNA19, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Oh3, Pa, RAB, SE1, Tn, Va, W, WV; > Lactuca biennis (Moench) Fernald – F; > Lactuca terrae-novae Fernald – F; > Mulgedium spicatum (Lam.) Small var. integrifolium (Torr. & A.Gray) Small – S; > Mulgedium spicatum (Lam.) Small var. spicatum – S
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