Narcissus biflorus – synonym of Narcissus medioluteus
Nasturtium microphyllum – synonym of Rorippa microphylla
Nasturtium officinale – synonym of Rorippa nasturtium-aquaticum
Neotinea intacta – synonym of Neotinea maculata
Neottia gemmipara – synonym of Spiranthes romanzoffiana
Neottia latifolia – synonym of Listera ovata
Neottia spiralis – synonym of Spiranthes spiralis