Linaria purpurea or purple toadflax is a purple-flowered plant native to Italy, part of the plantain family (Plantaginaceae).

It is sometimes planted in gardens and is also an introduced weed in North America and other parts of Europe.

The flower is between 1 and 2 centimeters long with five lobes arranged into two lips with a spur at the end.

[4] It is native to Italy,[5] but it can be found growing wild as an introduced species in parts of western North America, including California,[6] western Washington,[7] and British Columbia,[3] and it is cultivated as an ornamental plant.

[10] In a recent study conducted in Italy the plant was found to contain a compound exhibiting antifungal activity, which drastically reduced the production of aflatoxin B1 in Aspergillus flavus Link., making it a potential natural and 'green' anti-aflatoxin B1 agent suitable for use in the food industry.