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 Flowers white with a triangular red blaze at the base of each petal; leaves petiolate, the petiole > 5 mm long; leaves acuminate
1 Flowers variously colored (including white), but never with a triangular red blaze; leaves sessile to short-petiolate (petiole < 3 mm long); leaves obtuse, acute, or slightly acuminate