Macartney Rose
Macleaya
Maclura
Madwort
Magnolia
Mahaleb Cherry
Maiden Fern
Maidenhair Fern
Maidenhair Spleenwort
Maidenhair Tree
Maidenstears
Malabar Sprangletop
Maleberry
Mallow
Man Of The Earth
Mannagrass
Manyflower Flatsedge
Manyfruit Primrose-willow
Manyspike Flatsedge
Maple
Mapleleaf Goosefoot
Mapleleaf Viburnum
Marbleseed
Marginal Woodfern
Marigold
Marijuana
Maroon Carolina Milkvine
Marsh Bellflower
Marsh Blue Violet
Marsh Bristlegrass
Marsh Cudweed
Marsh Elder
Marsh Flatsedge
Marsh Marigold
Marsh Mermaidweed
Marsh Pea
Marsh Seedbox
Marsh Skullcap
Marsh St. Johnswort
Marshmallow
Marshpepper Knotweed
Marvel Of Peru
Maryland Goldenaster
Maryland Hawkweed