You can tell the difference between the toxic daffodil (Narcissus spp.), at right, and garlic (Allium sativum), at left, by using your sense of smell. Daffodils have none of the characteristic sulfur odor.
Photos by Susan A. Roth (left) and Rob Cardillo (right)
It is easy to mistake deadly foxglove (Digitalis purpurea), at left, for comfrey (Symphytum officinale), at right, in the early spring. Although foxglove is a beautiful cottage garden biennial, it is also deadly.
Photos by Rob Cardillo (left) and Steven Foster (right)
Poison hemlock (Conium maculatum), at left, is larger than Queen Anne’s lace (Daucus carota), at right. Steer clear of hemlock—a small nibble could cause paralysis or even death.
Photos by Rob Cardillo