himalayan balsaam also known as policemens helmet

impatiens glandulifera himalayan balsam himilayan pink flower plant annual wildflower invasive nature blooming purple natural blossom bloom botany balsaminaceae violet botanical foliage policeman 039 helmet wetland floral flora weed wild autumnal england environment autumn inflorescence outdoor river indian bright magenta flowers developed seed pods visible background bank balsaam policemens helme