Imbricate. Overlapping.
Leaflet. A single division of a compound leaf.
Membranous. Thin, more or less flexible, translucent.
Midrib. The central rib or central vein of a leaf or similar structure.
Monoecious. Having unisexual flowers, with both sexes borne on the same plant.
Nut. A hard-shelled, indehiscent, usually one-celled, one-seeded fruit.
Oblique. Slanted; of unequal-sided or non-symmetrical leaves or leaf bases.
Obovate. Inverted ovate.
Obpyriform. Inverted pear-shaped.
Obtuse. Blunt.