Lion's Ear 
Lipstick Plant 
Lobster Flower 
Long-leaved westringia 
Long-Stamen Basil 
Lyreleaf sage 
Maceróvia 
Magnificent prostanthera 
Magnificent Seep Monkeyflower 
Malaya Eyebright 
Marjoram 
Marrubium cuneatum 
Marsh Hedge Nettle 
Marsh lousewort 
Marsh Skullcap 
Marsh Speedwell 
Meadow Sage 
Mediterranean Lineseed 
Mediterranean Sage 
Mediterranean Toadflax 
Melampyrum nemorosum 
Mexican bush sage 
Mexican foxglove 
Mexican Hedge Nettle