Forbs are simply what are usually called “wildflowers,” i.e., they are herbaceous (non-woody) plants that are not grasses or grass-like sedges or rushes.
GALLERY OF FORBS
(thumbnail images are linked to more detailed species pages)
common yarrow
butterflyweed
false white indigo
hedge bindweed
rough avens
moneywort
Allegheny monkeyflower
wild bergamot
glade mallow
wild quinine
gray-headed coneflower
wild petunia
prairie-dock
Ohio spiderwort
Culver’s root
golden Alexander