Maryland senna 
Matted bush-pea 
Meadow bird's-foot trefoil 
Meadow vetchling 
Medicago arabica 
Medicago blancheana 
Medicago brachycarpa 
Medicago doliata 
Medicago falcata 
Medicago murex 
Medicago rigiduloides 
Medicago rugosa 
Medicago turbinata 
Mediterranean Milkwort 
Mediterranean Vetch 
Medusa Vetchling 
Melosa de arenas 
Mexican Flamebush 
Mexican holdback 
Mexican Holdback 
Mexican Palo Verde 
Milkwort 
Mimosa latispinosa 
Mirbelia speciosa