Lactuca canadensis L.

©Larry Allain. Provided by USGS National Wetlands Research Center (NWRC)
Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United States, Maryland.
©Ted Bodner. James H. Miller and Karl V. Miller, 2005, Forest plants of the southeast and their wild
©Ted Bodner. James H. Miller and Karl V. Miller, 2005, Forest plants of the southeast and their wild
©James H. Miller. James H. Miller and Karl V. Miller, 2005, Forest plants of the southeast and their
©Ted Bodner. James H. Miller and Karl V. Miller, 2005, Forest plants of the southeast and their wild
©William S. Justice. Provided by Smithsonian Institution, Department of Botany.
Tracey Slotta. Provided by ARS Systematic Botany and Mycology Laboratory. United States, Maryland.
Britton, N.L., and A. Brown, 1913, An illustrated flora of the northern United States, Canada and th
Britton, N.L., and A. Brown, 1913, An illustrated flora of the northern United States, Canada and th
Britton, N.L., and A. Brown, 1913, An illustrated flora of the northern United States, Canada and th

Plant Details

Scientific Name: Lactuca canadensis L.
Family Name: Asteraceae Bercht. & J. Presl - Aster family
Common Name: Canada lettuce
Symbol: LACA
Group: Dicot
Rank: Species
Date Modified: Feb. 7, 2026, 3:55 a.m.

Duration

  • Annual
  • Biennial

Growth Habits

  • Forb/herb

Synonyms

  • Lactuca canadensis L. var. integrifolia (Bigelow) Torr. & A. Gray
  • Lactuca canadensis L. var. latifolia Kuntze
  • Lactuca canadensis L. var. longifolia (Michx.) Farw.
  • Lactuca canadensis L. var. obovata Wiegand
  • Lactuca canadensis L. var. typica Wiegand
  • Lactuca sagittifolia Elliott
  • Lactuca steelei Britton

Wetland Ratings

AGCP AW CB EMP GP HI MW NCNE WMVC AK
FACU FACU FACU FACU FACU FACU FACU

Species Range Map