Common milkweed, Crownvetch – see Pink flowersEuropean field pansy, Oneflowered broomrape, White rattlesnakeroot – see White flowersAlfalfaAzure bluetBlue toadflaxCommon blue violetCommon eyebrightCommon selfhealCommon speedwellCommon vetchCow vetchHarlequin blueflagIndian-tobaccoKnapweedNeedletip blue-eyed grassPurple loosestrifePurple milkwortSlender vetchStrict blue-eyed grassTall blue lettuceCanada thistlePasture thistle