What is weather curly or flat leafed nan indispenssable herb in cooking and garnishing?

It seems like you're asking about a specific herb, but there's some confusion in the wording. Let's break it down:

* "Weather" doesn't make sense in this context. It's likely you meant "whether."

* "Curly or flat leafed" refers to the shape of the leaves. Many herbs have variations in leaf shape.

* "Nan" likely refers to "NaN" which is a mathematical term for "Not a Number" and doesn't apply here.

* "Indispenssable" should be "indispensable," meaning essential.

To help me understand what herb you're asking about, please tell me:

1. What type of cuisine are you interested in? (e.g., Italian, Thai, Mexican, etc.)

2. Do you have any other characteristics of the herb in mind? (e.g., flavor, color, smell)

With more information, I can help you identify the specific herb you're looking for.