Abstract:Flower forms of Pedicularis (Scrophulariaceae) display one of the greatest diversities within a particular genus of the flowering plants. The major pollinators of Pedicularis are the bumblebees (Bom-bus). In North America, floral resources of some species of Pedicularis may be shared by bumblebees, mason bees (Osmia) and humingbirds (Selasporus) as pollinators.