Glossary
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Letter: O
Showing 7 of 7 terms starting with "O"
- Ob-
- Inversely; indicating 180-degree inversion
- Oblong
- Longer than wide, with the sides nearly parallel. See drawing of leaf shapes.
- Obovate
- Egg-shaped, with the broadest part near the top. See drawing of leaf shapes.
- Obtuse
- Blunt or rounded at the apex. See leaf apex drawings.
- Ocrea
- In Polygonaceae, a tubular, more or less membranous sheath around the stem at the nodes.
- Opposite
- Leaves arranged in a pair directly across from one another. See drawing of leaf arrangements.
- Ovate
- Egg-shaped, with the broadest part near the base. See drawing of leaf shapes.