Environmental engineering success About forty miles north of downtown Pittsburgh and twenty miles east of the Pennsylvania-Ohio state line is 16,725-acre Moraine State Park- a mecca for plant life, particularly wetland plants, with more than 200 native species. the other plants in the meadows are swamp agrimony, ox-eye daisy, common milfoil, wild peppermint, smooth wood sorrel, water hemlock, early meadow-rue, New England aster, New York aster, swamp goldenrod, and wrinkle-leaf goldenrod. rst wildflower to bloom in the spring is the tiny harbinger-of-spring, soon followed by bloodroot, rue anemone, cutleaf toothwort, spring beauty, Carolina spring beauty, round-lobed hepatica, spotted wild geranium, wild strawberry, Indian pipe, mayapple, black cohosh, golden ragwort, yellow-eyed bluet, hooked buttercup or blisterwort, American cancerroot, longstyle sweetroot, wild sarsaparilla, golden Alexanders, wild ginger, bulbous bittercress, twoleaf miterwort, false Solomon's seal, yellow dogtooth violet or trout lily, jack-in-the-pulpit, great white trillium, perfoliate bellwort, sessile-leaf bellwort, showy orchid, and several species of violets.