Question: what is the difference between flat and curly parsley?
Answer: Flat-leaf parsley (Petroselinum crispum neapolitanum, also known as Italian parsley) has a more robust flavour and smoother mouthfeel than curly parsley (P. crispum), and is also easier to wash. Flat-leaf parsley surpassed its curly cousin as the green herb of choice about the turn of the last century.