Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.
1 Lower surface of leaf blades densely covered with white farina; ultimate leaf segments not articulate (the brown color of the petiole continuing into the midvein of the segment, most visible on the upper side of the segment)
1 Lower surface of leaf blades glabrous; ultimate leaf segments articulate (the brown color of the petiole ending abruptly at the segment base)