Macronema discoideum
Maihuenia poepiggii
Mammilaria wrightii
Matthiola montana
Meconopsis betonicifolia
Meconopsis horridula
Meconopsis hybrid 'Big Blue Alaskan'
Meconopsis nepalensis
Meconopsis punicea
Mentzelia pumila
Mertensia ciliata
Mertensia viridis ssp. cana
Michauxia tchihatchewii
Mimulus naiandinus ('Andean Nymph')
Mimulus primuloides
Mirabilis multiflora
Monardellla odoratissima
Myosotis olympica