Orchidaceae: Dactylorhiza viridis (Linnaeus) R.M. Bateman, Pridgeon & M.W. Chase
Site Description: Waterton National Park; Wet boggy area amongst Populus tremuloides stand.
Associated Species: Heracleum maximum, Populus tremuloides, Maianthemum stellatum
Plant Description: Green orchid, with 3-6 cauline leaves.