- toadflax, butter-and-eggs, wild snapdragon, devil's flax, Linaria vulgaris - common European perennial having showy yellow and orange flowers; a naturalized weed in North America
--1 is a kind of flower
--1 is a member of Linaria, genus Linaria
--1 has particulars: blue toadflax, old-field toadflax, Linaria canadensis