The secret to identifying cilantro lies in three important characteristics: leaf shape, aroma, and flavor.

Although cilantro and flat-leaf parsley can look remarkably similar, their leaves often provide the first useful clue.

Cilantro typically has softer, more rounded leaf lobes with gently scalloped edges. Flat-leaf parsley, on the other hand, generally has more pointed, sharply defined leaf segments.

This difference isn’t always obvious, particularly when the herbs are young or freshly harvested. However, examining several leaves rather than just one can make identification easier.

Another helpful clue is the smell.

Cilantro has a distinctive, powerful aroma that some people describe as citrusy, fresh, or slightly peppery. Parsley generally smells milder, with a grassy, herbal fragrance.

Interestingly, cilantro also has an unusual characteristic that makes it different from many other herbs.

Some people think cilantro tastes like soap!

Researchers have linked this perception partly to genetic differences affecting how people detect certain aroma compounds found in cilantro.

For those who enjoy it, cilantro adds a bright, refreshing flavor to dishes such as salsa, guacamole, soups, and curries.

For those who dislike it, even a small amount can overpower an entire meal.

Parsley, meanwhile, has a more subtle flavor and is frequently used in salads, sauces, soups, and garnishes.

So, which herb is cilantro in the picture?

The original puzzle illustration wasn’t accessible for verification, so I can’t reliably say whether cilantro is on the left or right.

However, you can use this simple identification guide:

• Cilantro: Usually has softer, more rounded leaf lobes and a distinctive citrusy aroma.
• Flat-leaf parsley: Usually has sharper, more pointed leaf segments and a milder, grassy smell.

If you’re shopping for fresh herbs, gently rubbing a leaf between your fingers and smelling it can provide another useful clue.

These small differences become easier to recognize with practice.

The next time you’re standing in the grocery store wondering which herb to buy, remember to examine the leaves and trust your sense of smell.

And here’s a question for everyone who enjoys cooking:

Do you love the taste of cilantro, or does it taste like soap to you?