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Margin: The edge of a structure (leaf, petal, etc.).
Midrib (midvein): The main, more prominent vein of a leaf.
Monoecious: Male and female flower parts held in separate structures on the same plant.
Naked (bud): A bud not covered by scales.
Node: The point on a stem where the buds and leaves develop and are attached.
Nut: large, dry fruit with a thick, bony wall surrounding the seed.
Nutlet: A small nut.
Opposite: Arranged in pairs; inserted on opposite sides of a stem at the same node.
Ovary: The lower part of the female pistil. It contains the ovules that will become seeds when fertilized.
Ovate: Egg-shaped, being broadest at the base.
Ovule: The egg-containing structure held in the ovary. It becomes the seed when fertilized.