sagittaria genus --- water-plantain family
arumleaf arrowhead (Sagittaria cuneata) -- in July -- Lake Hattie Road, Laramie Basin, southern Wyoming white & cream
arumleaf arrowhead (Sagittaria cuneata) -- in July -- High Plains Environmental Center, Loveland CO
arumleaf arrowhead (Sagittaria cuneata) -- in August -- Eagle's Nest Open Space, Larimer County, CO