Curly leaf parsley (Petroselinum crispum neapolitanum) – it is perennial, aromatic and culinary type of herb, It has Thicker ruffled, “curly” leaves A bright green color A muted flavor reminiscent of grass, which gets more bitter with time Original Italian variety with smooth, highly aromatic leaves. The aroma of the smooth flat leaf parsley varieties  is much finer and milder than the curly varieties. Many cooks prefer this kind of parsley.