About Papaver radicatum subsp. dahlianum (Nordh.) Rändel
This taxon, Papaver radicatum subsp. dahlianum, refers to the Arctic poppy, also commonly called rooted poppy or yellow poppy, a flowering plant in the poppy family. Arctic poppies grow in cold climates, and have a suite of adaptations including heliotropism and specialized physical traits that help them survive the harsh Arctic environment. Arctic poppies grow primarily in gravelly, rocky, well-drained soils, though they can also grow in meadows. They have a circumpolar distribution, occurring in Arctic and alpine zones across Europe, North America, and Asia. As of 2023, the Arctic poppy holds the record as the northernmost flowering plant in the world, with its northern range limit reaching Kaffeklubben Island at 83°40'N latitude. Like many flowering plants, Arctic poppies depend on pollination for reproduction. They bloom in early spring as snow begins to melt, which coincides with the start of activity for Arctic bumblebees (Bombus polaris), the main pollinator of Arctic poppies. As spring shifts to summer, bumblebee pollination declines, and flies take over pollination of the plants. Alkaloids are present in all parts of the Arctic poppy, from stems to leaves, and these compounds support the plant's survival in multiple ways. If consumed, the poppy's alkaloids impact a predator's central nervous system, protein synthesis, enzyme activity, and membrane transport, meaning the Arctic poppy is not a direct food source for most species. Alkaloids also act as growth regulators that boost the plant's reproduction rates, function as natural herbicides that inhibit the growth of competing plants, and serve as substitutes for key minerals like calcium and potassium that are hard for Arctic poppies to acquire in their native environment.
