 Meadow and roadside plants include speckled alder, flat-topped white aster, New York aster, blue-eyed-grass, azure bluet, spreading dogbane, fireweed, gray goldenrod, rough-stemmed goldenrod, wavy hair-grass, hardhack, whorled loosestrife, tall meadow-rue, meadowsweet, common milkweed, pearly everlasting, wild strawberry, and yellow rattle.Freshwater marsh and pond plants include common arrowhead, horned bladderwort, highbush blueberry, bluejoint, common cattail, water lobelia, pickerelweed, marsh St. John's wort, swamp candles, swamp rose, white turtlehead, fragrant water-lily, and yellow water-lily.The Mount Desert Island section of the park harbors more than half of the vascular plant species occurring in Maine.