Complex sentence: The leaves are opposite, approximately pentagonal and palmate and the leaf lobes have two to three deep cuts making it similar in shape to a pigeon's foot (hence the Latin epithet "columbinus").
Split into simpler sentences: The leaves are opposite, approximately pentagonal and palmate and the leaf lobes have two to three deep cuts. So the leaf shape is similar to a pigeon's foot (hence the Latin epithet "columbinus").