- N., North
- nanófilo, nanophyllous
- napiforme, napiform
- nativo, native, indigen
- naturalizado, naturalized
- navicular, navicular, boat-shaped
- necrófito, necrophyte
- nectario, nectary
- negro, black
- negruzco, blackish, nigrescent
- neotropical, Neotropical
- nervado, nervose, veined
- -nervado, -nerved
- nervadura, vein, venation, nerve
- nervadura espuria, false vein
- nervadura media, mid-vein
- nervadura terciaria, tertiary vein
- nervaduras transversales, cross-veins
- nérvulo, veinlet
- neumatóforo, pneumatophore
- neutro, agamous
- nítido, nitid
- nocturno, nocturnal
- nodal, nodal
- nodoso, knotty
- nódulo, nodule
- noduloso, nodulose, nodose
- nucela, nucellus
- nuciforme, nuciform
- núculo, nucule, nutlet
- nudo, node
- nuececilla, nutlet
- nuez, nut
- nutante, nutant