Prepared by Jennifer L. D’Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. Updated April 2019.

Scientific name: Linaria vulgaris P. Mill.

Common name(s): butter-and-eggs, butter and eggs, butter-and-eggs toadflax, common toadflax, yellow toadflax, wild snapdragon, ramsted, flaxweed, Jacob’s ladder, devil’s flax

Link(s): USDA PLANTS Profile, Go Botany

Images: (to see enlargements [PC]: click on image, then right click and choose “view image”)


– perennial

– considered invasive in some areas

-leaves are alternately arranged

-reproduces through seeds and rhizomes


-meadows and man-made disturbed areas


-Many seeds are produced each year by a single plant making it difficult to remove



Go Botany. “Linaria Vulgaris P. Mill.” Linaria Vulgaris (Butter-and-Eggs Toadflax): Go Botany, 2020, gobotany.nativeplanttrust.org/species/linaria/vulgaris/.