Linaceae, 63 Linaria, 102, 103 Linden Family, 72 Linnaea, 109 Linum, 63 Liparis, 17 Lippia, 99 Liriodendron, 40 Listera, 17 Lithospermum, 94 Live-for-ever, 49 Lizard's Tail, 19 Lobelia, 113 Lobeliaceae, 113 Lobelia Family, 113 Locust, 58 Locust, Honey, 58 Lombardy Poplar, 19 Long-spurred Violet, 76 Lonicera, 110 Loosestrife, 77, 87, 88 Loosestrife, False, 78 Loosestrife Family, 77 Lopseed, 107 Lopseed Family, 107 Loranthaceae, 25 Lotus, 35 Lousewort, 102 Love Grass, 7 Love-in-a-mist, 38 Low Juniper, 1 Ludvigia, 78 Lupine, 59 Lupinus, 59 Luzula, 10 Lychnis, 33 Lysimachia, 87, 88 Lycium, 100 Lycopus, 95 Lythraceae, 77 Lythrum, 77 Madder Family, 108 Mad-dog Skullcap, 96 Magnoliaceae, 40 Magnolia Family, 40 Maianthemum, 13 Mallow, 73 Mallow Family, 72 Mallow, Marsh, 72 Mallow, Poppy, 73 Mallow, Rose, 72 Mallow, Virginia, 73 Malva, 73 Malvaceae, 72 Manna Grass, 7 Maple, 70 Maple Family, 70 Mare's-tail, 79 Marigold, Bur, 124 Marigold, Water, 123 Marrubium, 96 Marsh Cinquefoil, 57 Marsh Elder, 114 Marsh Harebell, 112 Marsh Mallow, 72 Marsh Pea, 59 Marsh Speedwell, 105 Masterwort, 82 Matricaria, 130 Matrimony Vine, 100 May Apple, 40 Meadow Beauty, 77 Meadow Parsnip, 81 Meadow Pink, 34 Meadow Rue, 39 Meadow Salsify, 115 Meadow-sweet, 53 Medeola, 13 Medicago, 60, 61 Melampyrum, 104 Melastomaceae, 77 Melastoma Family, 77 Melilotus, 61 Menispermaceae, 40 Menispermum, 40 Mentha, 98 Menyanthes, 88 Mermaid Weed, 79 Mertensia, 93, 94 Mexican Tea, 29 Mezereum Family, 77 Microstylis, 17 Mignonette Family, 48 Mignonette, Yellow, 48 Mikania, 121 Milfoil, Water, 79 Milk Thistle, 117 Milk Vetch, 60 Milkweed, 90, 91 Milkweed Family, 90 Milkweed, Green, 90 Milkwort, 66 Milkwort Family, 65 Millet, 4 Mimulus, 102, 104 Mint, 98 Mint Family, 95 Mist Flower, 121 Mistletoe, Dwarf, 25 Mistletoe Family, 25 Mitchella, 108 Mitella, 51 Mitrewort, False, 51 Mocker-nut Hickory, 21 Mollugo, 31 Monarda, 96 Moneses, 85 Moneywort, 87 Monkey Flower, 104 Monkey Flower, Yellow, 102 Monotropa, 84 Moonseed, 40 Moonseed Family, 40 Morning Glory, 92 Morning Glory Family, 91 Morus, 24 Moss Pink, 92 Motherwort, 98 Moth Mullein, 101 Mountain Alder, 22 Mountain Ash, 52 Mountain Holly, 69 Mountain Maple, 70 Mountain Mint, 98 Mouse-ear Chickweed, 33 Mouse-ear Cress, 47 Mud Plantain, 10 Mudwort, 103 Mugwort, 119 Muhlenbergia, 5, 6 Mulberry, 24 Mullein, 101 Mullein Pink, 33 Muscari, 14 Musk Flower, 102 Mustard, 43, 44 Mustard Family, 42 Myosotis, 94 Myrica, 20, 21 Myricaceae, 20 Myriophyllum, 79 Naiad, 2 Naias, 2 Najadaceae, 2 Narrow-leaved Cat-tail, 2 Nelumbo, 35 Nemopanthus, 69 Nepeta, 98 Nettle, 24 Nettle, Dead, 99 Nettle Family, 23 Nettle, Hedge, 99 Nettle, Hemp, 99 Nettle, Horse, 100 Nicandra, 101 Nicotiana, 101 Nigella, 38 Nightshade, 100 Nightshade, Enchanter's, 78 Nightshade Family, 100 Ninebark, 53 Nipplewort, 115