Eurasian butter-and-eggs plant, Linaria vulgaris
North American butter-and-eggs plant, Triphysaria eriantha
From the yellow and white coloration of the flowers.
- Linaria vulgaris, a flowering plant native to Europe and northern Asia; yellow toadflax; common toadflax.
- Triphysaria eriantha, a flowering plant native to North America; johnny-tuck.