Nectariferous. Producing nectar.
Nerve. A simple or unbranched vein or slender rib.
Node. The place upon a stem which normally bears a leaf or whorl of leaves.
Nodose. Knotty or knobby.
Nucleus. The germ-cell of the ovule, which by fertilization becomes the seed; the kernel of a seed.
Numerous. Indefinite in number.
Nut. A hard indehiscent 1-celled and 1-seeded fruit, though usually resulting from a compound ovary.
Nutlet. A diminutive nut.
Ob-. A Latin prefix, usually carrying the idea of inversion.
Obcompressed. Compressed dorso-ventrally instead of laterally.