The Collaborative International Dictionary
Narcissus incomparabilis
Butter and eggs \Butter and eggs\, butter-and-eggs \butter-and-eggs\n.(Bot.), a name given to several perennial plants having showy flowers of two shades of yellow, or of yellow and orange, such as Narcissus incomparabilis in Europe, and the toadflax ( Linaria vulgaris) in the United States; the latter is a naturalized weed in North America.
Syn: toadflax, wild snapdragon, devil's flax, Linaria vulgaris.