blue toadflax Directory References Discover Inventors and Inventions of the Industrial Revolution Causes of the Great Depression 12 Greek Gods and Goddesses Why Are There Only 28 Days in February? 9 Mind-Altering Plants 10 Great Sports Rivalries 6 Things You Should Know About Meghan, Duchess of Sussex Contents blue toadflax plant Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Linaria canadensis, Nuttallanthus canadensis, old-field toadflax Learn about this topic in these articles:reclassification In toadflax…in the genus Nuttallanthus, including blue, or old-field, toadflax (N. canadensis, formerly L. canadensis), a delicate light blue flowering plant found throughout North America. Read More