blue toadflax

Blue toadflax, scientifically known as Nuttallanthus canadensis (formerly Linaria canadensis), is a flowering plant native to North America. It is characterized by its delicate, light blue flowers. This species is a weed that thrives in sandy soil, particularly on coastal plains in the southeastern United States.12

Toadflax, in general, refers to plants in the genus Linaria, which are part of the Plantaginaceae family. These plants are found in the north temperate zone, especially around the Mediterranean. They have flax-like leaves and two-lipped, spurred flowers, similar to snapdragons. Some toadflax species can be invasive outside their native regions.1