Rooting Out Invaders

After pulling a glossy buckthorn seedling out of the ground, Hanover High School students Lulu Fairclough-Stewart, left, and Catherine Collison look at its roots in the woods behind the school in Hanover, N.H., on April 25, 2014. Students were out for the second year removing invasive plants from the area. (Valley News - Jennifer Hauck)

After pulling a glossy buckthorn seedling out of the ground, Hanover High School students Lulu Fairclough-Stewart, left, and Catherine Collison look at its roots in the woods behind the school in Hanover, N.H., on April 25, 2014. Students were out for the second year removing invasive plants from the area. (Valley News - Jennifer Hauck) Purchase photo reprints »

After pulling a glossy buckthorn seedling out of the ground, Hanover High School students Lulu Fairclough-Stewart, left, and Catherine Collison look at its roots in the woods behind the school in Hanover, Friday. Students were out for the second year removing invasive plants from the area.

Valley News — Jennifer Hauck