Arctomecon californica is a species of poppy known by several common names, including California bearpoppy, Las Vegas bearpoppy, golden bearpoppy, and yellow-flowered desert poppy.
Eomecon is a monotypic genus of flowering plants in the poppy family containing the single species Eomecon chionantha.
It is the only species in the genus Pteridophyllum which was formerly placed in the mono-generic family Pteridophyllaceae, which is now included within the Papaveraceae.
The larvae feed on a wide range of herbaceous plants, including Asteraceae, Convolvulaceae, Fabaceae, Geraniaceae, Hydrophyllaceae, Linaceae, Papaveraceae, Polygonaceae, Rosaceae, Scrophulariaceae and Violaceae species.
Both Lamprocampnos and Corydalis are members of the Papaveraceae family, with seeds having an attached elaiosome that makes them attractive to ants, which disperse the seeds.
Meconic acid, also known as acidum meconicum and poppy acid, is a chemical substance found in certain plants of the Papaveraceae family (poppy) such as Papaver somniferum (opium poppy) and Papaver bracteatum.