What is this plant that sometimes accompanies parsley?

I frequently buy bunches of flat-leaf parsley. Every now and then I find one or two stems of a different-looking plant included. Here is an image, with normal flat-leaf parsley on the left. I remember it having a grassy, plausibly parsley-like smell, but nothing strong.
Is this some variant of parsley, or a different plant altogether?
Best Answer
I believe your mystery plant is....parsley. This question was asked and answered here. It appears that the best explanation is a leaf variant on the common cultivar "Italian Giant". Having grown this cultivar in my home garden, I can attest to having personal experience with this leaf shape. Chop it up and use it as you would the rest of the parsley.
Pictures about "What is this plant that sometimes accompanies parsley?"



What is cilantro vs parsley?
Cilantro leaves are more rounded, while parsley leaves are pointed. However, the best way to tell the two apart is by smelling them. Parsley has a fresh, mild herbal scent, while cilantro has a much stronger, spicy, citrusy aroma. Some people describe the smell and taste of fresh cilantro leaves as soap-like.Are coriander and parsley related?
Coriander, also known as cilantro in North America, and parsley are herbs from the same botanical family, Apiaceae. They are both used in cooking.Is cilantro the same as Curly parsley?
Curly parsley is used more for decorative purposes and has a milder, relatively bland taste. Cilantro is known for its \u201clove it or hate it\u201d taste. It has a more pungent, stronger taste than parsley and that slightly soapy smell from its aldehyde chemicals.Is cilantro a coriander or parsley?
Taken from the Coriandrum sativum plant\u2014or coriander plant\u2014cilantro is also known as coriander, Chinese parsley, and Mexican parsley. The word \u201ccilantro\u201d comes from the Spanish word coriander. Find our complete guide with 12 recipes featuring cilantro here.Easy Herbs for Beginners – Basil, Cilantro \u0026 Parsley
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: PhotoMIX Company, Karolina Grabowska, Karolina Grabowska, Karolina Grabowska