3 petals, 6 stamens, Angiosperms, Large-flowered trillium, Liliales, Monocots, North America, Plantae, Trillium grandiflorum, US, USA, Wisconsin, deep woods, eastern, flora, flower, flowers, forest, great white trillium, green, green leaves, hardwood, lily family, melanthiaceae, natural, nature, neutral soil, north american, north woods, northern, northwoods, perenial, perennial, petals, plant, pretty, rich woods, showy, sign of spring, six stamens, spring, stamens, thickets, three petals, three-petaled, trillium, white, white flower, white trillium, white wake-robin, wild, wild flower, wildflower, woods, yellow anthers