One is swamp, mostly silver maple. These include poplars, willows, red maple, silver maple and green ash. The bottomland forest comprises of cottonwood, silver maple, and elm. Some of the privy-marked Silver Maple Leaf versions were available only in Europe. The Silver Maple Leaf is legal tender. Wildlife uses the silver maple in various ways. Another Silver Maple Leaf version was issued to commemorate the millennium. The trees include plane, Indian chestnut, silver maple, and a swamp cypress. The Silver Maple Leaf's obverse displays the profile of Elizabeth II. The Silver Maple Leaf was originally packaged in Mylar. Another large wetland is the Appleton Silver Maple Swamp. Live roost trees are usually shagbark hickory, silver maple, and white oak. The Silver Maple Leaf's reverse displays the Canadian Maple Leaf. Silver maple and eastern sycamore are similarly well adapted to floodplains. The Silver Maple Leaf is issued annually by the Government of Canada.