What are opposite leaves?
Def: Stems or leaves appear across from one another at the same node; Arrangement Along Stem: Opposite leaves may appear in either a distichous or decussate arrangement. Distichous: Leaves arranged in two ranks along either side of the stem. Decussate: Leaves arranged in opposite pairs, rotating 90° at every node. As with many features, arrangement along the stem is not always opposite decussate or distichous.