|Lactuca serriola |
Common Names prickly lettuce, compass plant
Family Composites, Sunflower
Flower Color Yellow
Plant Type Herb
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