Lappula is a genus of flowering plants in the borage family known generally as stickseeds. They are native to the northern hemisphere. These are annual herbs producing funnel-shaped flowers and prickly fruits. One of the best known species is the European stickseed, Lappula squarrosa, which is a notorious noxious weed. Species include: \n* Lappula barbata \n* Lappula cenchrusoides - Great Plains stickseed \n* Lappula diploloma \n* Lappula marginata - margined stickseed \n* Lappula occidentalis - flatspine stickseed \n* Lappula squarrosa - European stickseed