Toadflax--don't you just love that name? It sounds so quaint, like something of a fairy tale. And if that name isn't cool enough, Linaria vulgaris also goes by Butter and Eggs.
From A Guide to the Wild Flowers:
"Our very familiarity with these conspicuous and beautiful flowers inclines us to pay little heed to them ; although they find their way into children's hands almost more than any other of our wayside flora. If we had to seek them through some quaking bog with only a vague hope of finding them we should probably prize them in some such way as we do the yellow orchis. But they give us no trouble. They galivant along the roadsides and we may admire them, or pass them by, just as we choose. No doubt the political economist would remind us in this connection that things are only valuable that are limited in supply."
Lounsberry, Alice. A Guide to the Wild Flowers. New York, 1899. 310. Web. Google Book Search. 7 Jul 2009.