• N15-like viruses
• N15likevirus
• N4-like viruses
• N4likevirus
• Naauna de Laubenfels, 1950 accepted as Coelosphaera (Coelosphaera) Thomson, 1873
• Naauna peltata (Topsent, 1904) accepted as Coelosphaera (Coelosphaera) peltata (Topsent, 1904)
• Nabalus Cass.
• Nabalus acerifolius Maxim.
• Nabalus alatus Hook.
• Nabalus albus (L.) C.Shih accepted as Nabalus albus (L.) Hook.
• Nabalus albus (L.) Hook.
• Nabalus albus var. albus accepted as Nabalus albus (L.) Hook.
• Nabalus albus var. serpentaria (Pursh) Torr. (uncertain > unassessed)
• Nabalus altissimus (L.) Hook.
• Nabalus altissimus var. altissimus accepted as Nabalus altissimus (L.) Hook.
• Nabalus altissimus var. cinnamomea Mohlenbr. (uncertain > unassessed)
• Nabalus altissimus var. cordatus Torr. & A.Gray accepted as Nabalus altissimus (L.) Hook.
• Nabalus altissimus var. deltoideus (Elliott) Torr. & A.Gray accepted as Nabalus altissimus (L.) Hook.
• Nabalus altissimus var. dissectus Torr. & A.Gray accepted as Nabalus altissimus (L.) Hook.
• Nabalus altissimus var. ovatus Torr. & A.Gray accepted as Nabalus altissimus (L.) Hook.
• Nabalus angustilobus (C.Shih) Sennikov
• Nabalus asper (Michx.) Torr. & A.Gray
• Nabalus barbatus (Torr. & A.Gray) A.Heller
• Nabalus bootii DC.
• Nabalus boottii (Torr. & A.Gray) DC. accepted as Prenanthes boottii (DC.) A.Gray
• Nabalus cordatus (Willd.) Hook. accepted as Nabalus altissimus (L.) Hook.
• Nabalus crepidineus (Michx.) DC.
• Nabalus cylindricus Small accepted as Nabalus roanensis Chick.
• Nabalus deltoideus DC. accepted as Nabalus altissimus (L.) Hook.
• Nabalus faberi (Hemsl.) Sennikov
• Nabalus fraseri DC. accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus fraseri var. barbatus Torr. & A.Gray accepted as Nabalus barbatus (Torr. & A.Gray) A.Heller
• Nabalus fraseri var. fraseri accepted as Nabalus fraseri DC. accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus fraseri var. integrifolius (Cass.) Torr. & A.Gray accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus glaucus (Raf.) DC.
• Nabalus hastatus (Less.) A.Heller accepted as Nabalus alatus Hook.
• Nabalus illinoensis DC. accepted as Nabalus asper (Michx.) Torr. & A.Gray
• Nabalus integrifolius Cass. accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus leptanthus (C.Shih) Sennikov
• Nabalus mainensis (A.Gray) A.Heller
• Nabalus muliensis Y.S.Chen, Lian S.Xu & R.Ke (uncertain > unassessed)
• Nabalus nanus (Bigelow) DC. accepted as Nabalus trifoliolatus Cass.
• Nabalus nipponicus Franch. & Sav.
• Nabalus ochroleucus Maxim.
• Nabalus pyramidalis (C.Shih) Sennikov
• Nabalus quercifolius Bertol.
• Nabalus racemiformis (C.Shih) Sennikov
• Nabalus racemosus (Michx.) DC. accepted as Nabalus racemosus (Michx.) Hook.
• Nabalus racemosus (Michx.) Hook.
• Nabalus racemosus var. multiflorus (Cronquist) Mohlenbr. (uncertain > unassessed)
• Nabalus racemosus var. multiflorus Mohlenbr. (uncertain > unassessed)
• Nabalus racemosus var. pinnatifidus Britton (uncertain > unassessed)
• Nabalus racemosus var. racemosus accepted as Nabalus racemosus (Michx.) Hook.
• Nabalus repens (L.) Ledeb. accepted as Ixeris repens (L.) A.Gray
• Nabalus roanensis Chick.
• Nabalus sagittata Rydb. (uncertain > unassessed)
• Nabalus sagittatus (A.Gray) Rydb.
• Nabalus sect. Acerifolii Sennikov (uncertain > unassessed)
• Nabalus sect. Altissimi Sennikov (uncertain > unassessed)
• Nabalus sect. Asperi Sennikov (uncertain > unassessed)
• Nabalus sect. Ochroleuci Sennikov (uncertain > unassessed)
• Nabalus sect. Racemosi Sennikov (uncertain > unassessed)
• Nabalus sect. Sinoseris Sennikov (uncertain > unassessed)
• Nabalus serpentarius (Pursh) Hook.
• Nabalus serpentarius var. barbatus (Torr. & A.Gray) C.Mohr accepted as Nabalus barbatus (Torr. & A.Gray) A.Heller
• Nabalus serpentarius var. integrifolius (Cass.) Britton accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus serpentarius var. laevis DC. accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus serpentarius var. serpentarius accepted as Nabalus serpentarius (Pursh) Hook.
• Nabalus suavis DC. accepted as Nabalus albus (L.) Hook.
• Nabalus tatarinowii (Maxim.) Nakai
• Nabalus tatarinowii var. divisa Nakai & Kitag. accepted as Nabalus tatarinowii (Maxim.) Nakai
• Nabalus tatarinowii var. tatarinowii accepted as Nabalus tatarinowii (Maxim.) Nakai
• Nabalus trifoliolatus Cass.
• Nabalus trifoliolatus var. dissectifolius Peck accepted as Nabalus trifoliolatus Cass.
• Nabalus trifoliolatus var. obovatus Burnham accepted as Nabalus trifoliolatus Cass.
• Nabalus trifoliolatus var. trifoliolatus accepted as Nabalus trifoliolatus Cass.
• Nabalus trilobatus Cass. (uncertain > unassessed)
• Nabalus virgatus (Michx.) DC. accepted as Prenanthes autumnalis Walter
• Nabidae Costa, 1852
• Nabis Latreille, 1802
• Nabis capsiformis Germar, 1838
• Nabis hageni China, 1946
• Nabis paranensis Harris, 1931
• Nablonium Cass. accepted as Ammobium R.Br.
• Nablonium calyceroides Cass. (uncertain > unassessed)
• Nabotomus Chamberlin, 1940
• Nabotomus delus Chamberlin, 1940
• Nacca Risso, 1826 accepted as Natica Scopoli, 1777
• Nacca deshayesiana (Nyst, 1845) † accepted as Natica deshayesiana Nyst, 1845 †
• Nacca fasciata Risso, 1826 accepted as Notocochlis dillwynii (Payraudeau, 1826)
• Nacca fulminea (Gmelin, 1791) accepted as Natica fulminea (Gmelin, 1791)
• Nacca fulminea (Gmelin, 1791), sensu Risso, 1826 accepted as Tectonatica sagraiana (A. d'Orbigny, 1842)
• Nacca fulminea f. cruentata (Gmelin, 1791) accepted as Natica fulminea (Gmelin, 1791)
• Nacca maxima Risso, 1826 accepted as Naticarius hebraeus (Martyn, 1786)
• Nacca punctata Risso, 1826 accepted as Naticarius stercusmuscarum (Gmelin, 1791)
• Naccaria Endlicher, 1836
• Naccaria antillana W.R.Taylor, 1971
• Naccaria corymbosa J.Agardh, 1899
• Naccaria gelatinosa J.Agardh, 1863 accepted as Naccaria wiggii (Turner) Endlicher ex J.Agardh, 1842
• Naccaria hawaiiana I.A.Abbott, 1985