Policeman’s helmet can be over six feet tall, a height completely unknown in native impatiens species. Magenta to pale pink flowers sport a spur at the back, like all impatiens species. In policeman’s helmet, though, the spur is shrunk down to a nub, and usually bent sharply over or even against the body of the flower (see photo below). Leaf edges will be fairly to dramatically toothed. Seedpods will explode when dry, scattering seed in all directions:  shield your eyes.

magenta to pale pink flowers

leaves with jagged edges