the.com/dahlia
a flower that turns competitive, with thousands of varieties bred by obsessives and judged in halls
edible tuberAztecs grew it as food before Europeans wanted blooms
sky-high countover 57,000 registered cultivars exist worldwide
giant formdinnerplate dahlias span over a foot wide
mexican nativeit is Mexico's official national flower
insulin hopesits tubers once tested as a diabetes treatment source