Lactuca serriola

Lactuca serriola Common Names prickly lettuce, compass plant Family Composites, Sunflower Flower Color Yellow Plant Type Herb Introduced Yes Native No Weed Yes

Prickly Lettuce is also called "compass plant" because the leaves on the main stem are held vertically in a north-south plane, perpendicular to direct sunlight.

It is also very closely related to the cultivated lettuce that we grow and eat. prickly lettuce, compass plant