sweet white violet
pansy violet
wood violet
white violet
bird's-foot violet
broad-leaved everlasting pea
greater knapweed
Canada violet
great knapweed
Viola canadensis
tall white violet
Centaurea scabiosa
purple sanicle
Chinese wistaria
caltrop
Wisteria chinensis
Aster acuminatus
star-thistle
Sanicula bipinnatifida
whorled aster
Centauria calcitrapa
elephant-tusk
Proboscidea louisianica
devil's claw
French lavender
wild hollyhock
checkerbloom
common unicorn plant
Lavandula stoechas
Monarda punctata
common devil's claw
Sidalcea malviflora
ram's horn
proboscis flower
horsemint
Viola canina
heath violet
dog violet
Gentiana crinita
Gentianopsis crinita
lady's thistle
holy thistle
Our Lady's mild thistle
purple cress
milk thistle
Silybum marianum
purple-flowered
blessed thistle
Cardamine douglasii