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 Epicalyx equal to calyx; epicalyx bract apices 2-fid or dentate; flowers 1-1.5 (-2) cm in diameter; carpels (10-) 20-60
1 Epicalyx shorter than calyx; epicalyx bracts entire (rarely 2-fid or dentate); flowers 1-2.5 (-3.5 cm in diameter; carpels (20-) 50-200 (-250)