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 Petiole 2.5-3.5 cm long; corolla 1.8-2 cm long; perennial
1 Petiole 5-10 cm long; corolla 1-1.5 cm long; annual