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Nuttallanthus
Also called Old Field Toadflax
Nuttallanthus is a genus of four species of herbaceous annuals and perennials that was traditionally placed in the foxglove family Scrophulariaceae. Due to new genetic research, it has now been placed in the vastly expanded family Plantaginaceae. Three species of Nuttallanthus are native to North America and one to South America. Nuttallanthus was until the 1980s included in a wider circumscription of the genus Linaria, a genus now considered restricted to the Old World.
Text excerpted from the Wikipedia article Nuttallanthus by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
