Lactuca canadensis L.  
Family: Asteraceae
Canada lettuce, tall lettuce, tall wild lettuce, wild lettuce
[Lactuca canadensis var. integrifolia L., Lactuca canadensis var. latifolia L., Lactuca canadensis var. latifolia f. exauriculata L., Lactuca canadensis var. longifolia L., Lactuca canadensis var. longifolia f. angustipes L., Lactuca canadensis var. obovata L., Lactuca canadensis var. spinulosa L., Lactuca canadensis var. typica L., Lactuca canadensis var. typica f. angustipes L., Lactuca sagittifolia Elliott]
Lactuca canadensis image
Robert Bierman  
Etymology: Lactuca: name for "milk"
Plants: erect, annual/biennial, 1'-8' tall forb with milky juice; stems leafy, smooth with whitish fuzz
Leaves: varying from entire, toothed, to pinnately-divided with narrow to arrow-shaped base, edges not spiny
Flowers: head 3/8" wide with 13-22 yellow to purple rays usually longer than wide; inflorescence with many heads in long, conical, loosely-branched cluster; blooms July-Sept.
Fruits: blackish, flat dry seed with only one obvious line on each side, and with white, fluffy pappus
Habitat: moderate moisture; meadows, fields, woods
Conservation Status: Native
Lactuca canadensis image
Robert W. Freckmann  
Lactuca canadensis image
Rob Baller  
Lactuca canadensis image
Merel R. Black  
Lactuca canadensis image
Robert W. Freckmann  
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