blind gentian
blue daze
wood violet
Viola pedata
bird's-foot violet
alabastrum
pansy violet
Johnny-jump-up
cornflower
Veronica beccabunga
Penstemon serrulatus
Viola canina
Gentiana quinquefolia
Veronica chamaedrys
stiff gentian
Polemonium van-bruntiae
Jacob's ladder
European brooklime
ague weed
Greek valerian
Gentianella quinquefolia
brooklime
heath violet
germander speedwell
dog violet
Polymonium caeruleum van-bruntiae
cascade penstemon
Polemonium caeruleum
bird's eye
bluish-lilac
five-flowered gentian
charity
agueweed
blue-lilac
Ageratum houstonianum
leather flower
Clematis versicolor
common ageratum
Cypripedium calceolus pubescens
Baptisia australis
butterfly pea
Clitoria mariana
large yellow lady's slipper
blue false indigo
heal-all
Stokesia laevis
gentian blue
cornflower aster