Mojave Desert Plum          

Montgomery Hawthorn          

Morefields Cinquefoil          

Morgantown Blackberry          

Mountain Ash          

Mountain Avens          

Mountain Mahogany          

Mountain Misery          

Mountain Ninebark          

Mountain-avens          

Mountainmeadow Cinquefoil          

Mountaintop Blackberry          

Mousetail          

Mt. Desert Island Blackberry          

Mt. Vernon Dewberry          

Multiflora Rose          

Murrays Plum          

Musk Rose