Nuttallanthus canadensis
（重定向自Linaria canadensis）
![](/Images/godic/202501/24/Toadflax-166f0657.jpg")
Nuttallanthus canadensis (syn. Linaria canadensis (L.) Dumort., Antirrhinum canadense L.; blue toadflax, Canada toadflax, old-field toadflax) is a species of Nuttallanthus in the Plantaginaceae family, native to eastern North America from Ontario east to Nova Scotia and south to Texas and Florida.