Great Basin Naturalist


The previously reported alkaloids (including protopines, benzophenanthridines, tetrahydrobenzylisoquinolines, and protoberberines) of the genus Arctomecon (Papaveraceae) are discussed in relation to their distribution in the plant kingdom, in the Papaveraceae, and among the three species of Arctomecon. The biological activity of these alkaloids is discussed, and possible implications for herbivore and plant-insect interactions in A. humilis are presented.