toadflax noun2 •Any of several European plants, of the genus Linaria, having two-lipped yellow flowers.“What on earth did you put in that stuff?” “Bug-bane, barren-wort, penny-cress and blood-root, catchfly, toad-flax, nap-weed and wormwood,” said Catweazle. — 1970 •Any of several other plants in the family Plantaginaceae. formstoadflaxes
